113142142 has 4 divisors (see below), whose sum is σ = 169713216. Its totient is φ = 56571070.

The previous prime is 113142103. The next prime is 113142143. The reversal of 113142142 is 241241311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241241311 = 139 ⋅1735549.

It is a super-2 number, since 2×113142142² = 25602288592696328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113142143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28285534 + ... + 28285537.

It is an arithmetic number, because the mean of its divisors is an integer number (42428304).

Almost surely, 2^113142142 is an apocalyptic number.

113142142 is a deficient number, since it is larger than the sum of its proper divisors (56571074).

113142142 is an equidigital number, since it uses as much as digits as its factorization.

113142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56571073.

The product of its digits is 192, while the sum is 19.

The square root of 113142142 is about 10636.8295088339. The cubic root of 113142142 is about 483.6614410551.

Adding to 113142142 its reverse (241241311), we get a palindrome (354383453).

It can be divided in two parts, 11314 and 2142, that added together give a square (13456 = 116²).

The spelling of 113142142 in words is "one hundred thirteen million, one hundred forty-two thousand, one hundred forty-two".