1157839523 has 2 divisors, whose sum is σ = 1157839524. Its totient is φ = 1157839522.

The previous prime is 1157839513. The next prime is 1157839547. The reversal of 1157839523 is 3259387511.

It is a weak prime.

It is an emirp because it is prime and its reverse (3259387511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1157839523 - 2²⁸ = 889404067 is a prime.

It is a super-2 number, since 2×1157839523² = 2681184722041735058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1157839513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578919761 + 578919762.

It is an arithmetic number, because the mean of its divisors is an integer number (578919762).

Almost surely, 2^1157839523 is an apocalyptic number.

1157839523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157839523 is an equidigital number, since it uses as much as digits as its factorization.

1157839523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 1157839523 is about 34027.0410556075. The cubic root of 1157839523 is about 1050.0648555556.

The spelling of 1157839523 in words is "one billion, one hundred fifty-seven million, eight hundred thirty-nine thousand, five hundred twenty-three".