1055078931 has 16 divisors (see below), whose sum is σ = 1469433600. Its totient is φ = 672117600.

The previous prime is 1055078923. The next prime is 1055078933. The reversal of 1055078931 is 1398705501.

It is not a de Polignac number, because 1055078931 - 2³ = 1055078923 is a prime.

It is a super-2 number, since 2×1055078931² = 2226383101280205522, 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 1055078931.

It is not an unprimeable number, because it can be changed into a prime (1055078933) 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 in 15 ways as a sum of consecutive naturals, for example, 65245 + ... + 79793.

It is an arithmetic number, because the mean of its divisors is an integer number (91839600).

Almost surely, 2^1055078931 is an apocalyptic number.

1055078931 is a deficient number, since it is larger than the sum of its proper divisors (414354669).

1055078931 is a wasteful number, since it uses less digits than its factorization.

1055078931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15626.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 1055078931 is about 32481.9785573478. The cubic root of 1055078931 is about 1018.0325174272.

The spelling of 1055078931 in words is "one billion, fifty-five million, seventy-eight thousand, nine hundred thirty-one".