113513791 has 2 divisors, whose sum is σ = 113513792.
Its totient is φ = 113513790.
The previous prime is 113513747. The next prime is 113513821. The reversal of 113513791 is 197315311.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 113513791 - 27 = 113513663 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (113513591) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56756895 + 56756896.
It is an arithmetic number, because the mean of its divisors is an integer number (56756896).
Almost surely, 2113513791 is an apocalyptic number.
113513791 is a deficient number, since it is larger than the sum of its proper divisors (1).
113513791 is an equidigital number, since it uses as much as digits as its factorization.
113513791 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2835, while the sum is 31.
The square root of 113513791 is about 10654.2851003716.
The cubic root of 113513791 is about 484.1904388553.
The spelling of 113513791 in words is "one hundred thirteen million, five hundred thirteen thousand, seven hundred ninety-one".