113397239 has 2 divisors, whose sum is σ = 113397240. Its totient is φ = 113397238.

The previous prime is 113397223. The next prime is 113397253. The reversal of 113397239 is 932793311.

It is a strong prime.

It is an emirp because it is prime and its reverse (932793311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113397239 - 2⁴ = 113397223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113397439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56698619 + 56698620.

It is an arithmetic number, because the mean of its divisors is an integer number (56698620).

Almost surely, 2^113397239 is an apocalyptic number.

113397239 is a deficient number, since it is larger than the sum of its proper divisors (1).

113397239 is an equidigital number, since it uses as much as digits as its factorization.

113397239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 38.

The square root of 113397239 is about 10648.8139715181. The cubic root of 113397239 is about 484.0246654893.

The spelling of 113397239 in words is "one hundred thirteen million, three hundred ninety-seven thousand, two hundred thirty-nine".