189535131 has 6 divisors (see below), whose sum is σ = 273772980. Its totient is φ = 126356748.

The previous prime is 189535103. The next prime is 189535153. The reversal of 189535131 is 131535981.

189535131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189535131 - 2⁹ = 189534619 is a prime.

It is a super-3 number, since 3×189535131³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (189535331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10529721 + ... + 10529738.

It is an arithmetic number, because the mean of its divisors is an integer number (45628830).

Almost surely, 2^189535131 is an apocalyptic number.

189535131 is a deficient number, since it is larger than the sum of its proper divisors (84237849).

189535131 is a wasteful number, since it uses less digits than its factorization.

189535131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21059465 (or 21059462 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 189535131 is about 13767.1758541830. The cubic root of 189535131 is about 574.4204681447.

The spelling of 189535131 in words is "one hundred eighty-nine million, five hundred thirty-five thousand, one hundred thirty-one".