902149065 has 12 divisors (see below), whose sum is σ = 1563725124. Its totient is φ = 481146144.

The previous prime is 902149057. The next prime is 902149109. The reversal of 902149065 is 560941209.

902149065 is a `hidden beast` number, since 90 + 21 + 490 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 449991369 + 452157696 = 21213^2 + 21264^2 .

It is not a de Polignac number, because 902149065 - 2³ = 902149057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10023834 + ... + 10023923.

It is an arithmetic number, because the mean of its divisors is an integer number (130310427).

Almost surely, 2^902149065 is an apocalyptic number.

It is an amenable number.

902149065 is a deficient number, since it is larger than the sum of its proper divisors (661576059).

902149065 is a wasteful number, since it uses less digits than its factorization.

902149065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20047768 (or 20047765 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 902149065 is about 30035.7963936367. The cubic root of 902149065 is about 966.2572550188.

The spelling of 902149065 in words is "nine hundred two million, one hundred forty-nine thousand, sixty-five".