157919418 has 24 divisors (see below), whose sum is σ = 345302100. Its totient is φ = 52156224.

The previous prime is 157919401. The next prime is 157919467. The reversal of 157919418 is 814919751.

It is a happy number.

157919418 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 131262849 + 26656569 = 11457^2 + 5163^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38283 + ... + 42206.

Almost surely, 2^157919418 is an apocalyptic number.

157919418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

157919418 is an abundant number, since it is smaller than the sum of its proper divisors (187382682).

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

157919418 is a wasteful number, since it uses less digits than its factorization.

157919418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80606 (or 80603 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 157919418 is about 12566.5993013225. The cubic root of 157919418 is about 540.5200956221.

The spelling of 157919418 in words is "one hundred fifty-seven million, nine hundred nineteen thousand, four hundred eighteen".