113865261 has 8 divisors (see below), whose sum is σ = 151942080. Its totient is φ = 75849312.

The previous prime is 113865209. The next prime is 113865299. The reversal of 113865261 is 162568311.

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

It is not a de Polignac number, because 113865261 - 2⁶ = 113865197 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113860261) 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, 10656 + ... + 18473.

It is an arithmetic number, because the mean of its divisors is an integer number (18992760).

Almost surely, 2^113865261 is an apocalyptic number.

It is an amenable number.

113865261 is a deficient number, since it is larger than the sum of its proper divisors (38076819).

113865261 is a wasteful number, since it uses less digits than its factorization.

113865261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30435.

The product of its digits is 8640, while the sum is 33.

The square root of 113865261 is about 10670.7666547442. The cubic root of 113865261 is about 484.6896530148.

The spelling of 113865261 in words is "one hundred thirteen million, eight hundred sixty-five thousand, two hundred sixty-one".