157090418 has 4 divisors (see below), whose sum is σ = 235635630. Its totient is φ = 78545208.

The previous prime is 157090399. The next prime is 157090441. The reversal of 157090418 is 814090751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814090751 = 1999 ⋅407249.

It can be written as a sum of positive squares in only one way, i.e., 144889369 + 12201049 = 12037^2 + 3493^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39272603 + ... + 39272606.

Almost surely, 2^157090418 is an apocalyptic number.

157090418 is a deficient number, since it is larger than the sum of its proper divisors (78545212).

157090418 is an equidigital number, since it uses as much as digits as its factorization.

157090418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78545211.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 157090418 is about 12533.5716378054. The cubic root of 157090418 is about 539.5726133630.

The spelling of 157090418 in words is "one hundred fifty-seven million, ninety thousand, four hundred eighteen".