189504136 has 16 divisors (see below), whose sum is σ = 355476240. Its totient is φ = 94710480.

The previous prime is 189504127. The next prime is 189504137. The reversal of 189504136 is 631405981.

It is a super-2 number, since 2×189504136² = 71823635122212992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189504095 and 189504104.

It is not an unprimeable number, because it can be changed into a prime (189504137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23455 + ... + 30481.

It is an arithmetic number, because the mean of its divisors is an integer number (22217265).

Almost surely, 2^189504136 is an apocalyptic number.

It is an amenable number.

189504136 is a deficient number, since it is larger than the sum of its proper divisors (165972104).

189504136 is a wasteful number, since it uses less digits than its factorization.

189504136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10404 (or 10400 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 189504136 is about 13766.0501234014. The cubic root of 189504136 is about 574.3891544547.

The spelling of 189504136 in words is "one hundred eighty-nine million, five hundred four thousand, one hundred thirty-six".