113028731 has 4 divisors (see below), whose sum is σ = 113058864. Its totient is φ = 112998600.

The previous prime is 113028709. The next prime is 113028743. The reversal of 113028731 is 137820311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137820311 = 41 ⋅3361471.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113028731 is a prime.

It is a super-2 number, since 2×113028731² = 25550988062940722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113028731.

It is not an unprimeable number, because it can be changed into a prime (113028761) 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, 8480 + ... + 17261.

It is an arithmetic number, because the mean of its divisors is an integer number (28264716).

Almost surely, 2^113028731 is an apocalyptic number.

113028731 is a deficient number, since it is larger than the sum of its proper divisors (30133).

113028731 is an equidigital number, since it uses as much as digits as its factorization.

113028731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30132.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 113028731 is about 10631.4971194089. The cubic root of 113028731 is about 483.4997834430.

The spelling of 113028731 in words is "one hundred thirteen million, twenty-eight thousand, seven hundred thirty-one".