1056402001 has 8 divisors (see below), whose sum is σ = 1060982208. Its totient is φ = 1051830000.

The previous prime is 1056401993. The next prime is 1056402007. The reversal of 1056402001 is 1002046501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056402001 - 2³ = 1056401993 is a prime.

It is a super-2 number, since 2×1056402001² = 2231970375433608002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056402001.

It is not an unprimeable number, because it can be changed into a prime (1056402007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 450091 + ... + 452431.

It is an arithmetic number, because the mean of its divisors is an integer number (132622776).

Almost surely, 2^1056402001 is an apocalyptic number.

It is an amenable number.

1056402001 is a deficient number, since it is larger than the sum of its proper divisors (4580207).

1056402001 is a wasteful number, since it uses less digits than its factorization.

1056402001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1056402001 is about 32502.3383927988. The cubic root of 1056402001 is about 1018.4578775966.

Adding to 1056402001 its reverse (1002046501), we get a palindrome (2058448502).

The spelling of 1056402001 in words is "one billion, fifty-six million, four hundred two thousand, one".