1056995481 has 4 divisors (see below), whose sum is σ = 1409327312. Its totient is φ = 704663652.

The previous prime is 1056995477. The next prime is 1056995491. The reversal of 1056995481 is 1845996501.

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 1056995481 - 2² = 1056995477 is a prime.

It is a super-2 number, since 2×1056995481² = 2234478893708842722, 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 1056995481.

It is not an unprimeable number, because it can be changed into a prime (1056995461) 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, 176165911 + ... + 176165916.

It is an arithmetic number, because the mean of its divisors is an integer number (352331828).

Almost surely, 2^1056995481 is an apocalyptic number.

It is an amenable number.

1056995481 is a deficient number, since it is larger than the sum of its proper divisors (352331831).

1056995481 is an equidigital number, since it uses as much as digits as its factorization.

1056995481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352331830.

The product of its (nonzero) digits is 388800, while the sum is 48.

The square root of 1056995481 is about 32511.4669155361. The cubic root of 1056995481 is about 1018.6485629691.

The spelling of 1056995481 in words is "one billion, fifty-six million, nine hundred ninety-five thousand, four hundred eighty-one".