157632861 has 8 divisors (see below), whose sum is σ = 216957184. Its totient is φ = 101698560.

The previous prime is 157632847. The next prime is 157632863. The reversal of 157632861 is 168236751.

157632861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157632861 - 2⁵ = 157632829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157632863) 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, 847396 + ... + 847581.

It is an arithmetic number, because the mean of its divisors is an integer number (27119648).

Almost surely, 2^157632861 is an apocalyptic number.

It is an amenable number.

157632861 is a deficient number, since it is larger than the sum of its proper divisors (59324323).

157632861 is a wasteful number, since it uses less digits than its factorization.

157632861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695011.

The product of its digits is 60480, while the sum is 39.

The square root of 157632861 is about 12555.1925911154. The cubic root of 157632861 is about 540.1929591621.

The spelling of 157632861 in words is "one hundred fifty-seven million, six hundred thirty-two thousand, eight hundred sixty-one".