113493491 has 2 divisors, whose sum is σ = 113493492. Its totient is φ = 113493490.

The previous prime is 113493463. The next prime is 113493493. The reversal of 113493491 is 194394311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113493491 - 2²² = 109299187 is a prime.

Together with 113493493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113493493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56746745 + 56746746.

It is an arithmetic number, because the mean of its divisors is an integer number (56746746).

Almost surely, 2^113493491 is an apocalyptic number.

113493491 is a deficient number, since it is larger than the sum of its proper divisors (1).

113493491 is an equidigital number, since it uses as much as digits as its factorization.

113493491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 113493491 is about 10653.3323894451. The cubic root of 113493491 is about 484.1615740751.

The spelling of 113493491 in words is "one hundred thirteen million, four hundred ninety-three thousand, four hundred ninety-one".