189925315 has 8 divisors (see below), whose sum is σ = 229927968. Its totient is φ = 150595200.

The previous prime is 189925301. The next prime is 189925319. The reversal of 189925315 is 513529981.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-189925315 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189925319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167511 + ... + 168640.

It is an arithmetic number, because the mean of its divisors is an integer number (28740996).

Almost surely, 2^189925315 is an apocalyptic number.

189925315 is a deficient number, since it is larger than the sum of its proper divisors (40002653).

189925315 is a wasteful number, since it uses less digits than its factorization.

189925315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336269.

The product of its digits is 97200, while the sum is 43.

The square root of 189925315 is about 13781.3393761274. The cubic root of 189925315 is about 574.8143723423.

The spelling of 189925315 in words is "one hundred eighty-nine million, nine hundred twenty-five thousand, three hundred fifteen".