902157140 has 12 divisors (see below), whose sum is σ = 1894530036. Its totient is φ = 360862848.

The previous prime is 902157131. The next prime is 902157163. The reversal of 902157140 is 41751209.

It can be written as a sum of positive squares in 2 ways, for example, as 662650564 + 239506576 = 25742^2 + 15476^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22553909 + ... + 22553948.

It is an arithmetic number, because the mean of its divisors is an integer number (157877503).

Almost surely, 2^902157140 is an apocalyptic number.

It is an amenable number.

902157140 is an abundant number, since it is smaller than the sum of its proper divisors (992372896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

902157140 is a wasteful number, since it uses less digits than its factorization.

902157140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45107866 (or 45107864 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 902157140 is about 30035.9308162740. The cubic root of 902157140 is about 966.2601379511.

The spelling of 902157140 in words is "nine hundred two million, one hundred fifty-seven thousand, one hundred forty".