157145580 has 72 divisors (see below), whose sum is σ = 501774000. Its totient is φ = 39699072.

The previous prime is 157145551. The next prime is 157145629. The reversal of 157145580 is 85541751.

157145580 is a `hidden beast` number, since 1 + 5 + 71 + 4 + 5 + 580 = 666.

157145580 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

157145580 is strictly pandigital in base 9.

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 23 ways as a sum of consecutive naturals, for example, 19555 + ... + 26394.

Almost surely, 2^157145580 is an apocalyptic number.

157145580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157145580 is an abundant number, since it is smaller than the sum of its proper divisors (344628420).

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

157145580 is a wasteful number, since it uses less digits than its factorization.

157145580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45983 (or 45978 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 157145580 is about 12535.7720145191. The cubic root of 157145580 is about 539.6357626026.

The spelling of 157145580 in words is "one hundred fifty-seven million, one hundred forty-five thousand, five hundred eighty".