113517142 has 4 divisors (see below), whose sum is σ = 170275716. Its totient is φ = 56758570.

The previous prime is 113517139. The next prime is 113517161. The reversal of 113517142 is 241715311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241715311 = 71 ⋅3404441.

It is a super-2 number, since 2×113517142² = 25772283055696328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28379284 + ... + 28379287.

It is an arithmetic number, because the mean of its divisors is an integer number (42568929).

Almost surely, 2^113517142 is an apocalyptic number.

113517142 is a deficient number, since it is larger than the sum of its proper divisors (56758574).

113517142 is an equidigital number, since it uses as much as digits as its factorization.

113517142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56758573.

The product of its digits is 840, while the sum is 25.

The square root of 113517142 is about 10654.4423598798. The cubic root of 113517142 is about 484.1952033460.

It can be divided in two parts, 11 and 3517142, that added together give a palindrome (3517153).

The spelling of 113517142 in words is "one hundred thirteen million, five hundred seventeen thousand, one hundred forty-two".