113137813 has 2 divisors, whose sum is σ = 113137814. Its totient is φ = 113137812.

The previous prime is 113137769. The next prime is 113137853. The reversal of 113137813 is 318731311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106131204 + 7006609 = 10302^2 + 2647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113137813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113137853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56568906 + 56568907.

It is an arithmetic number, because the mean of its divisors is an integer number (56568907).

Almost surely, 2^113137813 is an apocalyptic number.

It is an amenable number.

113137813 is a deficient number, since it is larger than the sum of its proper divisors (1).

113137813 is an equidigital number, since it uses as much as digits as its factorization.

113137813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 28.

The square root of 113137813 is about 10636.6260158003. The cubic root of 113137813 is about 483.6552724220.

The spelling of 113137813 in words is "one hundred thirteen million, one hundred thirty-seven thousand, eight hundred thirteen".