157916218 has 8 divisors (see below), whose sum is σ = 237554100. Its totient is φ = 78731520.

The previous prime is 157916197. The next prime is 157916221. The reversal of 157916218 is 812619751.

It is a happy number.

157916218 is nontrivially palindromic in base 15.

157916218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 147695409 + 10220809 = 12153^2 + 3197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112423 + ... + 113818.

Almost surely, 2^157916218 is an apocalyptic number.

157916218 is a deficient number, since it is larger than the sum of its proper divisors (79637882).

157916218 is a wasteful number, since it uses less digits than its factorization.

157916218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226592.

The product of its digits is 30240, while the sum is 40.

The square root of 157916218 is about 12566.4719790401. The cubic root of 157916218 is about 540.5164446546.

The spelling of 157916218 in words is "one hundred fifty-seven million, nine hundred sixteen thousand, two hundred eighteen".