1056913919 has 8 divisors (see below), whose sum is σ = 1120377168. Its totient is φ = 993594240.

The previous prime is 1056913909. The next prime is 1056913927. The reversal of 1056913919 is 9193196501.

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

It is a de Polignac number, because none of the positive numbers 2^k-1056913919 is a prime.

It is a super-2 number, since 2×1056913919² = 2234134064351877122, 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 1056913919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056913909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20537 + ... + 50354.

It is an arithmetic number, because the mean of its divisors is an integer number (140047146).

Almost surely, 2^1056913919 is an apocalyptic number.

1056913919 is a deficient number, since it is larger than the sum of its proper divisors (63463249).

1056913919 is an equidigital number, since it uses as much as digits as its factorization.

1056913919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71785.

The product of its (nonzero) digits is 65610, while the sum is 44.

The square root of 1056913919 is about 32510.2125339100. The cubic root of 1056913919 is about 1018.6223612957.

The spelling of 1056913919 in words is "one billion, fifty-six million, nine hundred thirteen thousand, nine hundred nineteen".