189235136 has 28 divisors (see below), whose sum is σ = 395279880. Its totient is φ = 89637120.

The previous prime is 189235127. The next prime is 189235141. The reversal of 189235136 is 631532981.

It is a happy number.

It is a super-4 number, since 4×189235136⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 189235136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76595 + ... + 79026.

Almost surely, 2^189235136 is an apocalyptic number.

189235136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189235136 is an abundant number, since it is smaller than the sum of its proper divisors (206044744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189235136 is a wasteful number, since it uses less digits than its factorization.

189235136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155652 (or 155642 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 189235136 is about 13756.2762403203. The cubic root of 189235136 is about 574.1172450872.

The spelling of 189235136 in words is "one hundred eighty-nine million, two hundred thirty-five thousand, one hundred thirty-six".