113518281 has 8 divisors (see below), whose sum is σ = 151430400. Its totient is φ = 75642512.

The previous prime is 113518259. The next prime is 113518283. The reversal of 113518281 is 182815311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113518281 is a prime.

It is a super-2 number, since 2×113518281² = 25772800242389922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113518283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (18928800).

Almost surely, 2^113518281 is an apocalyptic number.

It is an amenable number.

113518281 is a deficient number, since it is larger than the sum of its proper divisors (37912119).

113518281 is a wasteful number, since it uses less digits than its factorization.

113518281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18175.

The product of its digits is 1920, while the sum is 30.

The square root of 113518281 is about 10654.4958116281. The cubic root of 113518281 is about 484.1968227680.

The spelling of 113518281 in words is "one hundred thirteen million, five hundred eighteen thousand, two hundred eighty-one".