157997260 has 12 divisors (see below), whose sum is σ = 331794288. Its totient is φ = 63198896.

The previous prime is 157997219. The next prime is 157997291. The reversal of 157997260 is 62799751.

It is a happy number.

157997260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 157997260.

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, 3949912 + ... + 3949951.

It is an arithmetic number, because the mean of its divisors is an integer number (27649524).

Almost surely, 2^157997260 is an apocalyptic number.

157997260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157997260 is an abundant number, since it is smaller than the sum of its proper divisors (173797028).

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

157997260 is a wasteful number, since it uses less digits than its factorization.

157997260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899872 (or 7899870 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 157997260 is about 12569.6960981561. The cubic root of 157997260 is about 540.6088925001.

The spelling of 157997260 in words is "one hundred fifty-seven million, nine hundred ninety-seven thousand, two hundred sixty".