189236 has 6 divisors (see below), whose sum is σ = 331170. Its totient is φ = 94616.

The previous prime is 189229. The next prime is 189239. The reversal of 189236 is 632981.

189236 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 126736 + 62500 = 356^2 + 250^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 189199 and 189208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189239) by changing a digit.

189236 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23651 + ... + 23658.

It is an arithmetic number, because the mean of its divisors is an integer number (55195).

2¹⁸⁹²³⁶ is an apocalyptic number.

It is an amenable number.

189236 is a deficient number, since it is larger than the sum of its proper divisors (141934).

189236 is a wasteful number, since it uses less digits than its factorization.

189236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47313 (or 47311 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 189236 is about 435.0126434944. The cubic root of 189236 is about 57.4118118844.

The spelling of 189236 in words is "one hundred eighty-nine thousand, two hundred thirty-six".