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1144162471 is a prime number
BaseRepresentation
bin100010000110010…
…1000100010100111
32221201221110211211
41010030220202213
54320401144341
6305311212251
740232135434
oct10414504247
92851843754
101144162471
11537939221
1227b217087
1315307401a
14abd56b8b
156a6ab181
hex443288a7

1144162471 has 2 divisors, whose sum is σ = 1144162472. Its totient is φ = 1144162470.

The previous prime is 1144162457. The next prime is 1144162483. The reversal of 1144162471 is 1742614411.

It is a strong prime.

It is an emirp because it is prime and its reverse (1742614411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144162471 - 27 = 1144162343 is a prime.

It is a super-3 number, since 3×11441624713 (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144162171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572081235 + 572081236.

It is an arithmetic number, because the mean of its divisors is an integer number (572081236).

Almost surely, 21144162471 is an apocalyptic number.

1144162471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144162471 is an equidigital number, since it uses as much as digits as its factorization.

1144162471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 1144162471 is about 33825.4707432136. The cubic root of 1144162471 is about 1045.9138152603.

Adding to 1144162471 its reverse (1742614411), we get a palindrome (2886776882).

The spelling of 1144162471 in words is "one billion, one hundred forty-four million, one hundred sixty-two thousand, four hundred seventy-one".