157332842 has 4 divisors (see below), whose sum is σ = 235999266. Its totient is φ = 78666420.

The previous prime is 157332821. The next prime is 157332853. The reversal of 157332842 is 248233751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 153487321 + 3845521 = 12389^2 + 1961^2 .

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 as a sum of consecutive naturals, namely, 39333209 + ... + 39333212.

Almost surely, 2^157332842 is an apocalyptic number.

157332842 is a deficient number, since it is larger than the sum of its proper divisors (78666424).

157332842 is an equidigital number, since it uses as much as digits as its factorization.

157332842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78666423.

The product of its digits is 40320, while the sum is 35.

The square root of 157332842 is about 12543.2388959152. The cubic root of 157332842 is about 539.8500292268.

Subtracting 157332842 from its reverse (248233751), we obtain a palindrome (90900909).

The spelling of 157332842 in words is "one hundred fifty-seven million, three hundred thirty-two thousand, eight hundred forty-two".