113916731 has 4 divisors (see below), whose sum is σ = 115521264. Its totient is φ = 112312200.

The previous prime is 113916709. The next prime is 113916739. The reversal of 113916731 is 137619311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137619311 = 2699 ⋅50989.

It is a cyclic number.

It is not a de Polignac number, because 113916731 - 2⁶ = 113916667 is a prime.

It is a super-2 number, since 2×113916731² = 25954043203452722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113916739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802160 + ... + 802301.

It is an arithmetic number, because the mean of its divisors is an integer number (28880316).

Almost surely, 2^113916731 is an apocalyptic number.

113916731 is a deficient number, since it is larger than the sum of its proper divisors (1604533).

113916731 is an equidigital number, since it uses as much as digits as its factorization.

113916731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604532.

The product of its digits is 3402, while the sum is 32.

The square root of 113916731 is about 10673.1781115092. The cubic root of 113916731 is about 484.7626727057.

The spelling of 113916731 in words is "one hundred thirteen million, nine hundred sixteen thousand, seven hundred thirty-one".