1055156157 has 24 divisors (see below), whose sum is σ = 1698053760. Its totient is φ = 625879680.

The previous prime is 1055156131. The next prime is 1055156159. The reversal of 1055156157 is 7516515501.

It is a happy number.

1055156157 is a `hidden beast` number, since 1 + 0 + 551 + 56 + 1 + 57 = 666.

It is not a de Polignac number, because 1055156157 - 2⁶ = 1055156093 is a prime.

It is a super-2 number, since 2×1055156157² = 2226709031310017298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055156159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108732 + ... + 118037.

It is an arithmetic number, because the mean of its divisors is an integer number (70752240).

Almost surely, 2^1055156157 is an apocalyptic number.

It is an amenable number.

1055156157 is a deficient number, since it is larger than the sum of its proper divisors (642897603).

1055156157 is a wasteful number, since it uses less digits than its factorization.

1055156157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226833 (or 226830 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 36.

The square root of 1055156157 is about 32483.1672870735. The cubic root of 1055156157 is about 1018.0573549564.

The spelling of 1055156157 in words is "one billion, fifty-five million, one hundred fifty-six thousand, one hundred fifty-seven".