189002065 has 12 divisors (see below), whose sum is σ = 263831796. Its totient is φ = 129601248.

The previous prime is 189002059. The next prime is 189002113. The reversal of 189002065 is 560200981.

189002065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 78163281 + 110838784 = 8841^2 + 10528^2 .

It is not a de Polignac number, because 189002065 - 2¹¹ = 189000017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385474 + ... + 385963.

It is an arithmetic number, because the mean of its divisors is an integer number (21985983).

Almost surely, 2^189002065 is an apocalyptic number.

It is an amenable number.

189002065 is a deficient number, since it is larger than the sum of its proper divisors (74829731).

189002065 is an equidigital number, since it uses as much as digits as its factorization.

189002065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771456 (or 771449 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 189002065 is about 13747.8021879863. The cubic root of 189002065 is about 573.8814448785.

The spelling of 189002065 in words is "one hundred eighty-nine million, two thousand, sixty-five".