157131342 has 24 divisors (see below), whose sum is σ = 341786016. Its totient is φ = 52171776.

The previous prime is 157131329. The next prime is 157131347. The reversal of 157131342 is 243131751.

157131342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157131347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12358 + ... + 21609.

It is an arithmetic number, because the mean of its divisors is an integer number (14241084).

Almost surely, 2^157131342 is an apocalyptic number.

157131342 is an abundant number, since it is smaller than the sum of its proper divisors (184654674).

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

157131342 is a wasteful number, since it uses less digits than its factorization.

157131342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34232 (or 34229 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 157131342 is about 12535.2041068345. The cubic root of 157131342 is about 539.6194644115.

The spelling of 157131342 in words is "one hundred fifty-seven million, one hundred thirty-one thousand, three hundred forty-two".