113511151 has 4 divisors (see below), whose sum is σ = 122242792. Its totient is φ = 104779512.

The previous prime is 113511143. The next prime is 113511161. The reversal of 113511151 is 151115311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151115311 = 109 ⋅1386379.

It is a cyclic number.

It is not a de Polignac number, because 113511151 - 2³ = 113511143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113511121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4365801 + ... + 4365826.

It is an arithmetic number, because the mean of its divisors is an integer number (30560698).

Almost surely, 2^113511151 is an apocalyptic number.

113511151 is a deficient number, since it is larger than the sum of its proper divisors (8731641).

113511151 is an equidigital number, since it uses as much as digits as its factorization.

113511151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8731640.

The product of its digits is 75, while the sum is 19.

The square root of 113511151 is about 10654.1612058388. The cubic root of 113511151 is about 484.1866852067.

Adding to 113511151 its reverse (151115311), we get a palindrome (264626462).

The spelling of 113511151 in words is "one hundred thirteen million, five hundred eleven thousand, one hundred fifty-one".