115244142 has 48 divisors (see below), whose sum is σ = 252583920. Its totient is φ = 35033856.

The previous prime is 115244117. The next prime is 115244179. The reversal of 115244142 is 241442511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89608 + ... + 90884.

It is an arithmetic number, because the mean of its divisors is an integer number (5262165).

Almost surely, 2^115244142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115244142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126291960).

115244142 is an abundant number, since it is smaller than the sum of its proper divisors (137339778).

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

115244142 is a wasteful number, since it uses less digits than its factorization.

115244142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1384 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 115244142 is about 10735.1824390646. The cubic root of 115244142 is about 486.6382999875.

Adding to 115244142 its reverse (241442511), we get a palindrome (356686653).

The spelling of 115244142 in words is "one hundred fifteen million, two hundred forty-four thousand, one hundred forty-two".