113420142 has 64 divisors (see below), whose sum is σ = 278553600. Its totient is φ = 33920640.

The previous prime is 113420057. The next prime is 113420161. The reversal of 113420142 is 241024311.

It is a super-2 number, since 2×113420142² = 25728257222600328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45718 + ... + 48134.

It is an arithmetic number, because the mean of its divisors is an integer number (4352400).

Almost surely, 2^113420142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113420142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139276800).

113420142 is an abundant number, since it is smaller than the sum of its proper divisors (165133458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113420142 is a wasteful number, since it uses less digits than its factorization.

113420142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 113420142 is about 10649.8892951993. The cubic root of 113420142 is about 484.0572496768.

Adding to 113420142 its reverse (241024311), we get a palindrome (354444453).

The spelling of 113420142 in words is "one hundred thirteen million, four hundred twenty thousand, one hundred forty-two".