189419015 has 16 divisors (see below), whose sum is σ = 241758432. Its totient is φ = 141978624.

The previous prime is 189419003. The next prime is 189419017. The reversal of 189419015 is 510914981.

It is a cyclic number.

It is not a de Polignac number, because 189419015 - 2⁶ = 189418951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189419015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189419017) 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 15 ways as a sum of consecutive naturals, for example, 14387 + ... + 24203.

It is an arithmetic number, because the mean of its divisors is an integer number (15109902).

Almost surely, 2^189419015 is an apocalyptic number.

189419015 is a deficient number, since it is larger than the sum of its proper divisors (52339417).

189419015 is a wasteful number, since it uses less digits than its factorization.

189419015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 189419015 is about 13762.9580759370. The cubic root of 189419015 is about 574.3031406741.

The spelling of 189419015 in words is "one hundred eighty-nine million, four hundred nineteen thousand, fifteen".