902180225 has 12 divisors (see below), whose sum is σ = 1184510124. Its totient is φ = 679288320.

The previous prime is 902180189. The next prime is 902180243. The reversal of 902180225 is 522081209.

It can be written as a sum of positive squares in 6 ways, for example, as 46676224 + 855504001 = 6832^2 + 29249^2 .

It is not a de Polignac number, because 902180225 - 2⁶ = 902180161 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, 1060964 + ... + 1061813.

It is an arithmetic number, because the mean of its divisors is an integer number (98709177).

Almost surely, 2^902180225 is an apocalyptic number.

It is an amenable number.

902180225 is a deficient number, since it is larger than the sum of its proper divisors (282329899).

902180225 is a wasteful number, since it uses less digits than its factorization.

902180225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122804 (or 2122799 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 902180225 is about 30036.3151035542. The cubic root of 902180225 is about 966.2683796509.

The spelling of 902180225 in words is "nine hundred two million, one hundred eighty thousand, two hundred twenty-five".