191597132 has 12 divisors (see below), whose sum is σ = 336025536. Its totient is φ = 95589840.

The previous prime is 191597071. The next prime is 191597149. The reversal of 191597132 is 231795191.

191597132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 50108 + ... + 53795.

It is an arithmetic number, because the mean of its divisors is an integer number (28002128).

Almost surely, 2^191597132 is an apocalyptic number.

It is an amenable number.

191597132 is a deficient number, since it is larger than the sum of its proper divisors (144428404).

191597132 is a wasteful number, since it uses less digits than its factorization.

191597132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104368 (or 104366 counting only the distinct ones).

The product of its digits is 17010, while the sum is 38.

The square root of 191597132 is about 13841.8615800043. The cubic root of 191597132 is about 576.4960482169.

The spelling of 191597132 in words is "one hundred ninety-one million, five hundred ninety-seven thousand, one hundred thirty-two".