1056422729 has 4 divisors (see below), whose sum is σ = 1102354176. Its totient is φ = 1010491284.

The previous prime is 1056422711. The next prime is 1056422761. The reversal of 1056422729 is 9272246501.

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 a cyclic number.

It is not a de Polignac number, because 1056422729 - 2²⁸ = 787987273 is a prime.

It is a super-2 number, since 2×1056422729² = 2232057964695614882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1056422692 and 1056422701.

It is not an unprimeable number, because it can be changed into a prime (1056422429) 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, 22965689 + ... + 22965734.

It is an arithmetic number, because the mean of its divisors is an integer number (275588544).

Almost surely, 2^1056422729 is an apocalyptic number.

It is an amenable number.

1056422729 is a deficient number, since it is larger than the sum of its proper divisors (45931447).

1056422729 is an equidigital number, since it uses as much as digits as its factorization.

1056422729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45931446.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1056422729 is about 32502.6572605995. The cubic root of 1056422729 is about 1018.4645387151.

The spelling of 1056422729 in words is "one billion, fifty-six million, four hundred twenty-two thousand, seven hundred twenty-nine".