157613720 has 32 divisors (see below), whose sum is σ = 386871120. Its totient is φ = 57313920.

The previous prime is 157613719. The next prime is 157613723. The reversal of 157613720 is 27316751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157613723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178667 + ... + 179546.

Almost surely, 2^157613720 is an apocalyptic number.

157613720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157613720 is an abundant number, since it is smaller than the sum of its proper divisors (229257400).

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

157613720 is a wasteful number, since it uses less digits than its factorization.

157613720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358235 (or 358231 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 157613720 is about 12554.4302937250. The cubic root of 157613720 is about 540.1710934760.

The spelling of 157613720 in words is "one hundred fifty-seven million, six hundred thirteen thousand, seven hundred twenty".