113615213 has 2 divisors, whose sum is σ = 113615214. Its totient is φ = 113615212.

The previous prime is 113615209. The next prime is 113615221. The reversal of 113615213 is 312516311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99940009 + 13675204 = 9997^2 + 3698^2 .

It is an emirp because it is prime and its reverse (312516311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113615213 - 2² = 113615209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113615273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56807606 + 56807607.

It is an arithmetic number, because the mean of its divisors is an integer number (56807607).

Almost surely, 2^113615213 is an apocalyptic number.

It is an amenable number.

113615213 is a deficient number, since it is larger than the sum of its proper divisors (1).

113615213 is an equidigital number, since it uses as much as digits as its factorization.

113615213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 23.

The square root of 113615213 is about 10659.0437188333. The cubic root of 113615213 is about 484.3346003239.

The spelling of 113615213 in words is "one hundred thirteen million, six hundred fifteen thousand, two hundred thirteen".