157718012 has 36 divisors (see below), whose sum is σ = 293156640. Its totient is φ = 74233152.

The previous prime is 157717999. The next prime is 157718017. The reversal of 157718012 is 210817751.

It is a self number, because there is not a number n which added to its sum of digits gives 157718012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157718017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344888 + ... + 345344.

It is an arithmetic number, because the mean of its divisors is an integer number (8143240).

Almost surely, 2^157718012 is an apocalyptic number.

It is an amenable number.

157718012 is a deficient number, since it is larger than the sum of its proper divisors (135438628).

157718012 is a wasteful number, since it uses less digits than its factorization.

157718012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 32.

The square root of 157718012 is about 12558.5832003455. The cubic root of 157718012 is about 540.2902098038.

The spelling of 157718012 in words is "one hundred fifty-seven million, seven hundred eighteen thousand, twelve".