1056136427 has 4 divisors (see below), whose sum is σ = 1090205376. Its totient is φ = 1022067480.

The previous prime is 1056136423. The next prime is 1056136429. The reversal of 1056136427 is 7246316501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1056136427 - 2² = 1056136423 is a prime.

It is a super-2 number, since 2×1056136427² = 2230848304872652658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056136421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17034428 + ... + 17034489.

It is an arithmetic number, because the mean of its divisors is an integer number (272551344).

Almost surely, 2^1056136427 is an apocalyptic number.

1056136427 is a deficient number, since it is larger than the sum of its proper divisors (34068949).

1056136427 is an equidigital number, since it uses as much as digits as its factorization.

1056136427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34068948.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1056136427 is about 32498.2526761055. The cubic root of 1056136427 is about 1018.3725254293.

The spelling of 1056136427 in words is "one billion, fifty-six million, one hundred thirty-six thousand, four hundred twenty-seven".