9002138165 has 4 divisors (see below), whose sum is σ = 10802565804. Its totient is φ = 7201710528.

The previous prime is 9002138161. The next prime is 9002138183. The reversal of 9002138165 is 5618312009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5699797009 + 3302341156 = 75497^2 + 57466^2 .

It is a cyclic number.

It is not a de Polignac number, because 9002138165 - 2² = 9002138161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9002138161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900213812 + ... + 900213821.

It is an arithmetic number, because the mean of its divisors is an integer number (2700641451).

Almost surely, 2^9002138165 is an apocalyptic number.

It is an amenable number.

9002138165 is a deficient number, since it is larger than the sum of its proper divisors (1800427639).

9002138165 is a wasteful number, since it uses less digits than its factorization.

9002138165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800427638.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 9002138165 is about 94879.5982548409. The cubic root of 9002138165 is about 2080.2485345432.

The spelling of 9002138165 in words is "nine billion, two million, one hundred thirty-eight thousand, one hundred sixty-five".