1056454321 has 24 divisors (see below), whose sum is σ = 1220946720. Its totient is φ = 911005056.

The previous prime is 1056454319. The next prime is 1056454327. The reversal of 1056454321 is 1234546501.

It is a happy number.

It is not a de Polignac number, because 1056454321 - 2¹ = 1056454319 is a prime.

It is a super-2 number, since 2×1056454321² = 2232191464719142082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056454327) 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, 232150 + ... + 236656.

It is an arithmetic number, because the mean of its divisors is an integer number (50872780).

Almost surely, 2^1056454321 is an apocalyptic number.

It is an amenable number.

1056454321 is a deficient number, since it is larger than the sum of its proper divisors (164492399).

1056454321 is a wasteful number, since it uses less digits than its factorization.

1056454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625 (or 4612 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1056454321 is about 32503.1432479999. The cubic root of 1056454321 is about 1018.4746909045.

The spelling of 1056454321 in words is "one billion, fifty-six million, four hundred fifty-four thousand, three hundred twenty-one".