189235137 has 16 divisors (see below), whose sum is σ = 310540160. Its totient is φ = 99816192.

The previous prime is 189235127. The next prime is 189235141. The reversal of 189235137 is 731532981.

It is not a de Polignac number, because 189235137 - 2⁶ = 189235073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 189235095 and 189235104.

It is not an unprimeable number, because it can be changed into a prime (189235127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346312 + ... + 346857.

It is an arithmetic number, because the mean of its divisors is an integer number (19408760).

Almost surely, 2^189235137 is an apocalyptic number.

It is an amenable number.

189235137 is a deficient number, since it is larger than the sum of its proper divisors (121305023).

189235137 is a wasteful number, since it uses less digits than its factorization.

189235137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693192.

The product of its digits is 45360, while the sum is 39.

The square root of 189235137 is about 13756.2762766673. The cubic root of 189235137 is about 574.1172460985.

The spelling of 189235137 in words is "one hundred eighty-nine million, two hundred thirty-five thousand, one hundred thirty-seven".