189437249 has 8 divisors (see below), whose sum is σ = 196684032. Its totient is φ = 182261520.

The previous prime is 189437243. The next prime is 189437257. The reversal of 189437249 is 942734981.

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

It is a cyclic number.

It is not a de Polignac number, because 189437249 - 2⁴ = 189437233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189437243) 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, 12299 + ... + 23024.

It is an arithmetic number, because the mean of its divisors is an integer number (24585504).

Almost surely, 2^189437249 is an apocalyptic number.

It is an amenable number.

189437249 is a deficient number, since it is larger than the sum of its proper divisors (7246783).

189437249 is a wasteful number, since it uses less digits than its factorization.

189437249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35527.

The product of its digits is 435456, while the sum is 47.

The square root of 189437249 is about 13763.6204902635. The cubic root of 189437249 is about 574.3215680875.

The spelling of 189437249 in words is "one hundred eighty-nine million, four hundred thirty-seven thousand, two hundred forty-nine".