113117155 has 16 divisors (see below), whose sum is σ = 139454784. Its totient is φ = 88030720.

The previous prime is 113117153. The next prime is 113117161. The reversal of 113117155 is 551711311.

It is not a de Polignac number, because 113117155 - 2¹ = 113117153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113117153) 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, 102567 + ... + 103663.

It is an arithmetic number, because the mean of its divisors is an integer number (8715924).

Almost surely, 2^113117155 is an apocalyptic number.

113117155 is a deficient number, since it is larger than the sum of its proper divisors (26337629).

113117155 is a wasteful number, since it uses less digits than its factorization.

113117155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646.

The product of its digits is 525, while the sum is 25.

The square root of 113117155 is about 10635.6548928592. The cubic root of 113117155 is about 483.6258335206.

Adding to 113117155 its reverse (551711311), we get a palindrome (664828466).

The spelling of 113117155 in words is "one hundred thirteen million, one hundred seventeen thousand, one hundred fifty-five".