189630136 has 16 divisors (see below), whose sum is σ = 355957200. Its totient is φ = 94708224.

The previous prime is 189630097. The next prime is 189630139. The reversal of 189630136 is 631036981.

189630136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 189630095 and 189630104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189630139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5545 + ... + 20248.

It is an arithmetic number, because the mean of its divisors is an integer number (22247325).

Almost surely, 2^189630136 is an apocalyptic number.

It is an amenable number.

189630136 is a deficient number, since it is larger than the sum of its proper divisors (166327064).

189630136 is a wasteful number, since it uses less digits than its factorization.

189630136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26718 (or 26714 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 189630136 is about 13770.6258390823. The cubic root of 189630136 is about 574.5164287204.

The spelling of 189630136 in words is "one hundred eighty-nine million, six hundred thirty thousand, one hundred thirty-six".