157713418 has 4 divisors (see below), whose sum is σ = 236570130. Its totient is φ = 78856708.

The previous prime is 157713401. The next prime is 157713443. The reversal of 157713418 is 814317751.

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., 149401729 + 8311689 = 12223^2 + 2883^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39428353 + ... + 39428356.

Almost surely, 2^157713418 is an apocalyptic number.

157713418 is a deficient number, since it is larger than the sum of its proper divisors (78856712).

157713418 is an equidigital number, since it uses as much as digits as its factorization.

157713418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78856711.

The product of its digits is 23520, while the sum is 37.

The square root of 157713418 is about 12558.4002962161. The cubic root of 157713418 is about 540.2849639068.

The spelling of 157713418 in words is "one hundred fifty-seven million, seven hundred thirteen thousand, four hundred eighteen".