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1054015381 is a prime number
BaseRepresentation
bin111110110100101…
…111111110010101
32201110022112021201
4332310233332111
54124311443011
6252331112501
735055661066
oct7664577625
92643275251
101054015381
114a0a673a1
12254ba2731
1313a4a0153
149ddac56d
1562800cc1
hex3ed2ff95

1054015381 has 2 divisors, whose sum is σ = 1054015382. Its totient is φ = 1054015380.

The previous prime is 1054015349. The next prime is 1054015409. The reversal of 1054015381 is 1835104501.

It is an a-pointer prime, because the next prime (1054015409) can be obtained adding 1054015381 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 761263281 + 292752100 = 27591^2 + 17110^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054015381 - 25 = 1054015349 is a prime.

It is a super-2 number, since 2×10540153812 = 2221896846769150322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1054015301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527007690 + 527007691.

It is an arithmetic number, because the mean of its divisors is an integer number (527007691).

Almost surely, 21054015381 is an apocalyptic number.

It is an amenable number.

1054015381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054015381 is an equidigital number, since it uses as much as digits as its factorization.

1054015381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 1054015381 is about 32465.6030438370. The cubic root of 1054015381 is about 1017.6903337090.

Adding to 1054015381 its reverse (1835104501), we get a palindrome (2889119882).

It can be divided in two parts, 10540 and 15381, that added together give a square (25921 = 1612).

The spelling of 1054015381 in words is "one billion, fifty-four million, fifteen thousand, three hundred eighty-one".