189393253 has 8 divisors (see below), whose sum is σ = 216544640. Its totient is φ = 162265680.

The previous prime is 189393241. The next prime is 189393263. The reversal of 189393253 is 352393981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189393253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189393223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17008 + ... + 25846.

It is an arithmetic number, because the mean of its divisors is an integer number (27068080).

Almost surely, 2^189393253 is an apocalyptic number.

It is an amenable number.

189393253 is a deficient number, since it is larger than the sum of its proper divisors (27151387).

189393253 is an equidigital number, since it uses as much as digits as its factorization.

189393253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11907.

The product of its digits is 174960, while the sum is 43.

The square root of 189393253 is about 13762.0221261267. The cubic root of 189393253 is about 574.2771033932.

The spelling of 189393253 in words is "one hundred eighty-nine million, three hundred ninety-three thousand, two hundred fifty-three".