113520387 has 16 divisors (see below), whose sum is σ = 161618688. Its totient is φ = 70704480.

The previous prime is 113520371. The next prime is 113520389. The reversal of 113520387 is 783025311.

It is not a de Polignac number, because 113520387 - 2⁴ = 113520371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113520389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16164 + ... + 22097.

It is an arithmetic number, because the mean of its divisors is an integer number (10101168).

Almost surely, 2^113520387 is an apocalyptic number.

113520387 is a deficient number, since it is larger than the sum of its proper divisors (48098301).

113520387 is a wasteful number, since it uses less digits than its factorization.

113520387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38330.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 113520387 is about 10654.5946426882. The cubic root of 113520387 is about 484.1998170353.

Adding to 113520387 its reverse (783025311), we get a palindrome (896545698).

The spelling of 113520387 in words is "one hundred thirteen million, five hundred twenty thousand, three hundred eighty-seven".