157681552 has 40 divisors (see below), whose sum is σ = 354380096. Its totient is φ = 66566016.

The previous prime is 157681547. The next prime is 157681591. The reversal of 157681552 is 255186751.

It is a happy number.

It is a super-2 number, since 2×157681552² = 49726943682257408, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3003 + ... + 18010.

Almost surely, 2^157681552 is an apocalyptic number.

It is an amenable number.

157681552 is an abundant number, since it is smaller than the sum of its proper divisors (196698544).

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

157681552 is a wasteful number, since it uses less digits than its factorization.

157681552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21095 (or 21089 counting only the distinct ones).

The product of its digits is 84000, while the sum is 40.

The square root of 157681552 is about 12557.1315195788. The cubic root of 157681552 is about 540.2485732590.

The spelling of 157681552 in words is "one hundred fifty-seven million, six hundred eighty-one thousand, five hundred fifty-two".