113887121 has 8 divisors (see below), whose sum is σ = 119998080. Its totient is φ = 107787888.

The previous prime is 113887117. The next prime is 113887129. The reversal of 113887121 is 121788311.

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

It is a cyclic number.

It is not a de Polignac number, because 113887121 - 2² = 113887117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113887129) 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, 22955 + ... + 27471.

It is an arithmetic number, because the mean of its divisors is an integer number (14999760).

Almost surely, 2^113887121 is an apocalyptic number.

It is an amenable number.

113887121 is a deficient number, since it is larger than the sum of its proper divisors (6110959).

113887121 is a wasteful number, since it uses less digits than its factorization.

113887121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863.

The product of its digits is 2688, while the sum is 32.

The square root of 113887121 is about 10671.7908993758. The cubic root of 113887121 is about 484.7206681455.

The spelling of 113887121 in words is "one hundred thirteen million, eight hundred eighty-seven thousand, one hundred twenty-one".