130902785 has 8 divisors (see below), whose sum is σ = 169166760. Its totient is φ = 96666624.

The previous prime is 130902749. The next prime is 130902809. The reversal of 130902785 is 587209031.

It can be written as a sum of positive squares in 4 ways, for example, as 24049216 + 106853569 = 4904^2 + 10337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130902785 - 2²⁰ = 129854209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006880 + ... + 1007009.

It is an arithmetic number, because the mean of its divisors is an integer number (21145845).

Almost surely, 2^130902785 is an apocalyptic number.

It is an amenable number.

130902785 is a deficient number, since it is larger than the sum of its proper divisors (38263975).

130902785 is a wasteful number, since it uses less digits than its factorization.

130902785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013907.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 130902785 is about 11441.2754970764. The cubic root of 130902785 is about 507.7496454307.

The spelling of 130902785 in words is "one hundred thirty million, nine hundred two thousand, seven hundred eighty-five".