189522157 has 16 divisors (see below), whose sum is σ = 210185280. Its totient is φ = 169456000.

The previous prime is 189522133. The next prime is 189522167. The reversal of 189522157 is 751225981.

It is a cyclic number.

It is not a de Polignac number, because 189522157 - 2¹⁹ = 188997869 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 (189522167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198393 + ... + 199345.

It is an arithmetic number, because the mean of its divisors is an integer number (13136580).

Almost surely, 2^189522157 is an apocalyptic number.

It is an amenable number.

189522157 is a deficient number, since it is larger than the sum of its proper divisors (20663123).

189522157 is a wasteful number, since it uses less digits than its factorization.

189522157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244.

The product of its digits is 50400, while the sum is 40.

The square root of 189522157 is about 13766.7046528935. The cubic root of 189522157 is about 574.4073611617.

The spelling of 189522157 in words is "one hundred eighty-nine million, five hundred twenty-two thousand, one hundred fifty-seven".