902668149 has 12 divisors (see below), whose sum is σ = 1304350476. Its totient is φ = 601549632.

The previous prime is 902668147. The next prime is 902668163. The reversal of 902668149 is 941866209.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 520661124 + 382007025 = 22818^2 + 19545^2 .

It is not a de Polignac number, because 902668149 - 2¹ = 902668147 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (902668147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7857 + ... + 43209.

It is an arithmetic number, because the mean of its divisors is an integer number (108695873).

Almost surely, 2^902668149 is an apocalyptic number.

It is an amenable number.

902668149 is a deficient number, since it is larger than the sum of its proper divisors (401682327).

902668149 is a wasteful number, since it uses less digits than its factorization.

902668149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38196 (or 38193 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 902668149 is about 30044.4362403424. The cubic root of 902668149 is about 966.4425431390.

The spelling of 902668149 in words is "nine hundred two million, six hundred sixty-eight thousand, one hundred forty-nine".