157861488 has 20 divisors (see below), whose sum is σ = 407808968. Its totient is φ = 52620480.

The previous prime is 157861453. The next prime is 157861511. The reversal of 157861488 is 884168751.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 3288781 = 157861488 / (1 + 5 + 7 + 8 + 6 + 1 + 4 + 8 + 8).

It is a congruent number.

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, 1644343 + ... + 1644438.

Almost surely, 2^157861488 is an apocalyptic number.

It is an amenable number.

157861488 is an abundant number, since it is smaller than the sum of its proper divisors (249947480).

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

157861488 is a wasteful number, since it uses less digits than its factorization.

157861488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288792 (or 3288786 counting only the distinct ones).

The product of its digits is 430080, while the sum is 48.

The square root of 157861488 is about 12564.2941703862. The cubic root of 157861488 is about 540.4539940641.

The spelling of 157861488 in words is "one hundred fifty-seven million, eight hundred sixty-one thousand, four hundred eighty-eight".