157561008 has 40 divisors (see below), whose sum is σ = 444037056. Its totient is φ = 47745600.

The previous prime is 157560959. The next prime is 157561009. The reversal of 157561008 is 800165751.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 157561008.

It is not an unprimeable number, because it can be changed into a prime (157561009) 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, 148678 + ... + 149733.

Almost surely, 2^157561008 is an apocalyptic number.

It is an amenable number.

157561008 is an abundant number, since it is smaller than the sum of its proper divisors (286476048).

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

157561008 is a wasteful number, since it uses less digits than its factorization.

157561008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298433 (or 298427 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 157561008 is about 12552.3307795803. The cubic root of 157561008 is about 540.1108688680.

It can be divided in two parts, 157 and 561008, that added together give a palindrome (561165).

The spelling of 157561008 in words is "one hundred fifty-seven million, five hundred sixty-one thousand, eight".