189715465 has 16 divisors (see below), whose sum is σ = 234343872. Its totient is φ = 147334464.

The previous prime is 189715459. The next prime is 189715499. The reversal of 189715465 is 564517981.

It is a cyclic number.

It is not a de Polignac number, because 189715465 - 2³ = 189715457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 107722 + ... + 109468.

It is an arithmetic number, because the mean of its divisors is an integer number (14646492).

Almost surely, 2^189715465 is an apocalyptic number.

It is an amenable number.

189715465 is a deficient number, since it is larger than the sum of its proper divisors (44628407).

189715465 is a wasteful number, since it uses less digits than its factorization.

189715465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376.

The product of its digits is 302400, while the sum is 46.

The square root of 189715465 is about 13773.7237158294. The cubic root of 189715465 is about 574.6025886564.

The spelling of 189715465 in words is "one hundred eighty-nine million, seven hundred fifteen thousand, four hundred sixty-five".