1056343645 has 16 divisors (see below), whose sum is σ = 1456293888. Its totient is φ = 720552960.

The previous prime is 1056343591. The next prime is 1056343661. The reversal of 1056343645 is 5463436501.

It is not a de Polignac number, because 1056343645 - 2²¹ = 1054246493 is a prime.

It is a super-2 number, since 2×1056343645² = 2231723792663772050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72324 + ... + 85693.

It is an arithmetic number, because the mean of its divisors is an integer number (91018368).

Almost surely, 2^1056343645 is an apocalyptic number.

It is an amenable number.

1056343645 is a deficient number, since it is larger than the sum of its proper divisors (399950243).

1056343645 is a wasteful number, since it uses less digits than its factorization.

1056343645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158220.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 1056343645 is about 32501.4406603769. The cubic root of 1056343645 is about 1018.4391239333.

The spelling of 1056343645 in words is "one billion, fifty-six million, three hundred forty-three thousand, six hundred forty-five".