1056291839 has 2 divisors, whose sum is σ = 1056291840. Its totient is φ = 1056291838.

The previous prime is 1056291791. The next prime is 1056291913. The reversal of 1056291839 is 9381926501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056291839 is a prime.

It is a super-2 number, since 2×1056291839² = 2231504898276003842, which contains 22 as substring.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 1056291839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056294839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528145919 + 528145920.

It is an arithmetic number, because the mean of its divisors is an integer number (528145920).

Almost surely, 2^1056291839 is an apocalyptic number.

1056291839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056291839 is an equidigital number, since it uses as much as digits as its factorization.

1056291839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 1056291839 is about 32500.6436705490. The cubic root of 1056291839 is about 1018.4224746418.

The spelling of 1056291839 in words is "one billion, fifty-six million, two hundred ninety-one thousand, eight hundred thirty-nine".