113681593 has 2 divisors, whose sum is σ = 113681594. Its totient is φ = 113681592.

The previous prime is 113681573. The next prime is 113681611. The reversal of 113681593 is 395186311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113145769 + 535824 = 10637^2 + 732^2 .

It is a cyclic number.

It is not a de Polignac number, because 113681593 - 2⁹ = 113681081 is a prime.

It is not a weakly prime, because it can be changed into another prime (113681543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56840796 + 56840797.

It is an arithmetic number, because the mean of its divisors is an integer number (56840797).

Almost surely, 2^113681593 is an apocalyptic number.

It is an amenable number.

113681593 is a deficient number, since it is larger than the sum of its proper divisors (1).

113681593 is an equidigital number, since it uses as much as digits as its factorization.

113681593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 37.

The square root of 113681593 is about 10662.1570519290. The cubic root of 113681593 is about 484.4289065665.

The spelling of 113681593 in words is "one hundred thirteen million, six hundred eighty-one thousand, five hundred ninety-three".