1056235161 has 4 divisors (see below), whose sum is σ = 1408313552. Its totient is φ = 704156772.

The previous prime is 1056235127. The next prime is 1056235171. The reversal of 1056235161 is 1615326501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1056235161 - 2⁶ = 1056235097 is a prime.

It is a super-2 number, since 2×1056235161² = 2231265430665391842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1056235111) 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, 176039191 + ... + 176039196.

It is an arithmetic number, because the mean of its divisors is an integer number (352078388).

Almost surely, 2^1056235161 is an apocalyptic number.

It is an amenable number.

1056235161 is a deficient number, since it is larger than the sum of its proper divisors (352078391).

1056235161 is an equidigital number, since it uses as much as digits as its factorization.

1056235161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352078390.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1056235161 is about 32499.7717068905. The cubic root of 1056235161 is about 1018.4042589747.

The spelling of 1056235161 in words is "one billion, fifty-six million, two hundred thirty-five thousand, one hundred sixty-one".