157115442 has 16 divisors (see below), whose sum is σ = 342797472. Its totient is φ = 47610720.

The previous prime is 157115429. The next prime is 157115467. The reversal of 157115442 is 244511751.

It is a super-2 number, since 2×157115442² = 49370524229710728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190203 + ... + 1190334.

It is an arithmetic number, because the mean of its divisors is an integer number (21424842).

Almost surely, 2^157115442 is an apocalyptic number.

157115442 is an abundant number, since it is smaller than the sum of its proper divisors (185682030).

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

157115442 is a wasteful number, since it uses less digits than its factorization.

157115442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380553.

The product of its digits is 5600, while the sum is 30.

The square root of 157115442 is about 12534.5698769443. The cubic root of 157115442 is about 539.6012625710.

The spelling of 157115442 in words is "one hundred fifty-seven million, one hundred fifteen thousand, four hundred forty-two".