1045924381 has 2 divisors, whose sum is σ = 1045924382. Its totient is φ = 1045924380.

The previous prime is 1045924367. The next prime is 1045924393. The reversal of 1045924381 is 1834295401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 978125625 + 67798756 = 31275^2 + 8234^2 .

It is an emirp because it is prime and its reverse (1834295401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1045924381 - 2¹³ = 1045916189 is a prime.

It is a super-2 number, since 2×1045924381² = 2187915621540466322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1045924381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045927381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522962190 + 522962191.

It is an arithmetic number, because the mean of its divisors is an integer number (522962191).

Almost surely, 2^1045924381 is an apocalyptic number.

It is an amenable number.

1045924381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045924381 is an equidigital number, since it uses as much as digits as its factorization.

1045924381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1045924381 is about 32340.7541810639. The cubic root of 1045924381 is about 1015.0795899636.

The spelling of 1045924381 in words is "one billion, forty-five million, nine hundred twenty-four thousand, three hundred eighty-one".