189251368 has 16 divisors (see below), whose sum is σ = 355049280. Its totient is φ = 94571568.

The previous prime is 189251357. The next prime is 189251369. The reversal of 189251368 is 863152981.

It is not an unprimeable number, because it can be changed into a prime (189251369) 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, 10771 + ... + 22237.

It is an arithmetic number, because the mean of its divisors is an integer number (22190580).

Almost surely, 2^189251368 is an apocalyptic number.

It is an amenable number.

189251368 is a deficient number, since it is larger than the sum of its proper divisors (165797912).

189251368 is a wasteful number, since it uses less digits than its factorization.

189251368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536 (or 13532 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 189251368 is about 13756.8662129135. The cubic root of 189251368 is about 574.1336599470.

The spelling of 189251368 in words is "one hundred eighty-nine million, two hundred fifty-one thousand, three hundred sixty-eight".