157020270 has 64 divisors (see below), whose sum is σ = 424396800. Its totient is φ = 36835200.

The previous prime is 157020257. The next prime is 157020289. The reversal of 157020270 is 72020751.

It is a self number, because there is not a number n which added to its sum of digits gives 157020270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2556 + ... + 17904.

It is an arithmetic number, because the mean of its divisors is an integer number (6631200).

Almost surely, 2^157020270 is an apocalyptic number.

157020270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157020270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212198400).

157020270 is an abundant number, since it is smaller than the sum of its proper divisors (267376530).

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

157020270 is a wasteful number, since it uses less digits than its factorization.

157020270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15401.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 157020270 is about 12530.7729210931. The cubic root of 157020270 is about 539.4922868532.

The spelling of 157020270 in words is "one hundred fifty-seven million, twenty thousand, two hundred seventy".