113517491 has 2 divisors, whose sum is σ = 113517492. Its totient is φ = 113517490.

The previous prime is 113517487. The next prime is 113517557. The reversal of 113517491 is 194715311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113517491 - 2² = 113517487 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113517461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56758745 + 56758746.

It is an arithmetic number, because the mean of its divisors is an integer number (56758746).

Almost surely, 2^113517491 is an apocalyptic number.

113517491 is a deficient number, since it is larger than the sum of its proper divisors (1).

113517491 is an equidigital number, since it uses as much as digits as its factorization.

113517491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 32.

The square root of 113517491 is about 10654.4587380120. The cubic root of 113517491 is about 484.1956995528.

The spelling of 113517491 in words is "one hundred thirteen million, five hundred seventeen thousand, four hundred ninety-one".