189669315 has 48 divisors (see below), whose sum is σ = 344429568. Its totient is φ = 88968000.

The previous prime is 189669307. The next prime is 189669317. The reversal of 189669315 is 513966981.

It is not a de Polignac number, because 189669315 - 2³ = 189669307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189669317) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54580 + ... + 57950.

It is an arithmetic number, because the mean of its divisors is an integer number (7175616).

Almost surely, 2^189669315 is an apocalyptic number.

189669315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189669315 is a deficient number, since it is larger than the sum of its proper divisors (154760253).

189669315 is a wasteful number, since it uses less digits than its factorization.

189669315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432 (or 3421 counting only the distinct ones).

The product of its digits is 349920, while the sum is 48.

The square root of 189669315 is about 13772.0483225989. The cubic root of 189669315 is about 574.5559924551. Note that the first 3 decimals are identical.

The spelling of 189669315 in words is "one hundred eighty-nine million, six hundred sixty-nine thousand, three hundred fifteen".