1157086393 has 2 divisors, whose sum is σ = 1157086394. Its totient is φ = 1157086392.

The previous prime is 1157086363. The next prime is 1157086409. The reversal of 1157086393 is 3936807511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701349289 + 455737104 = 26483^2 + 21348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157086393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157086363) 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 as a sum of consecutive naturals, namely, 578543196 + 578543197.

It is an arithmetic number, because the mean of its divisors is an integer number (578543197).

Almost surely, 2^1157086393 is an apocalyptic number.

It is an amenable number.

1157086393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157086393 is an equidigital number, since it uses as much as digits as its factorization.

1157086393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1157086393 is about 34015.9726158168. The cubic root of 1157086393 is about 1049.8371305959.

The spelling of 1157086393 in words is "one billion, one hundred fifty-seven million, eighty-six thousand, three hundred ninety-three".