157203242 has 16 divisors (see below), whose sum is σ = 270864000. Its totient is φ = 67029648.

The previous prime is 157203187. The next prime is 157203251. The reversal of 157203242 is 242302751.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25742 + ... + 31257.

It is an arithmetic number, because the mean of its divisors is an integer number (16929000).

Almost surely, 2^157203242 is an apocalyptic number.

157203242 is a deficient number, since it is larger than the sum of its proper divisors (113660758).

157203242 is a wasteful number, since it uses less digits than its factorization.

157203242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57205.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 157203242 is about 12538.0717018208. The cubic root of 157203242 is about 539.7017580365.

Adding to 157203242 its reverse (242302751), we get a palindrome (399505993).

The spelling of 157203242 in words is "one hundred fifty-seven million, two hundred three thousand, two hundred forty-two".