189883137 has 4 divisors (see below), whose sum is σ = 253177520. Its totient is φ = 126588756.

The previous prime is 189883129. The next prime is 189883157. The reversal of 189883137 is 731388981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 189883137 - 2³ = 189883129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189883157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31647187 + ... + 31647192.

It is an arithmetic number, because the mean of its divisors is an integer number (63294380).

Almost surely, 2^189883137 is an apocalyptic number.

It is an amenable number.

189883137 is a deficient number, since it is larger than the sum of its proper divisors (63294383).

189883137 is an equidigital number, since it uses as much as digits as its factorization.

189883137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63294382.

The product of its digits is 290304, while the sum is 48.

The square root of 189883137 is about 13779.8090335099. The cubic root of 189883137 is about 574.7718182195.

The spelling of 189883137 in words is "one hundred eighty-nine million, eight hundred eighty-three thousand, one hundred thirty-seven".