113621393 has 2 divisors, whose sum is σ = 113621394. Its totient is φ = 113621392.

The previous prime is 113621381. The next prime is 113621407. The reversal of 113621393 is 393126311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94322944 + 19298449 = 9712^2 + 4393^2 .

It is an emirp because it is prime and its reverse (393126311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113621393 - 2²² = 109427089 is a prime.

It is not a weakly prime, because it can be changed into another prime (113621303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56810696 + 56810697.

It is an arithmetic number, because the mean of its divisors is an integer number (56810697).

Almost surely, 2^113621393 is an apocalyptic number.

It is an amenable number.

113621393 is a deficient number, since it is larger than the sum of its proper divisors (1).

113621393 is an equidigital number, since it uses as much as digits as its factorization.

113621393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 29.

The square root of 113621393 is about 10659.3336095649. Note that the first 3 decimals coincide. The cubic root of 113621393 is about 484.3433818168.

The spelling of 113621393 in words is "one hundred thirteen million, six hundred twenty-one thousand, three hundred ninety-three".