157210540 has 48 divisors (see below), whose sum is σ = 335865600. Its totient is φ = 61804800.

The previous prime is 157210507. The next prime is 157210567. The reversal of 157210540 is 45012751.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450286 + ... + 450634.

It is an arithmetic number, because the mean of its divisors is an integer number (6997200).

Almost surely, 2^157210540 is an apocalyptic number.

157210540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157210540 is an abundant number, since it is smaller than the sum of its proper divisors (178655060).

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

157210540 is a wasteful number, since it uses less digits than its factorization.

157210540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 157210540 is about 12538.3627320316. The cubic root of 157210540 is about 539.7101096083.

The spelling of 157210540 in words is "one hundred fifty-seven million, two hundred ten thousand, five hundred forty".