189074715 has 16 divisors (see below), whose sum is σ = 305920800. Its totient is φ = 99706112.

The previous prime is 189074713. The next prime is 189074761. The reversal of 189074715 is 517470981.

It is a cyclic number.

It is not a de Polignac number, because 189074715 - 2¹ = 189074713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189074713) 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, 69480 + ... + 72149.

It is an arithmetic number, because the mean of its divisors is an integer number (19120050).

Almost surely, 2^189074715 is an apocalyptic number.

189074715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189074715 is a deficient number, since it is larger than the sum of its proper divisors (116846085).

189074715 is a wasteful number, since it uses less digits than its factorization.

189074715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141726.

The product of its (nonzero) digits is 70560, while the sum is 42.

The square root of 189074715 is about 13750.4441746440. Note that the first 3 decimals coincide. The cubic root of 189074715 is about 573.9549663788.

The spelling of 189074715 in words is "one hundred eighty-nine million, seventy-four thousand, seven hundred fifteen".