130660785 has 24 divisors (see below), whose sum is σ = 227306664. Its totient is φ = 69431040.

The previous prime is 130660763. The next prime is 130660837. The reversal of 130660785 is 587066031.

It can be written as a sum of positive squares in 4 ways, for example, as 34012224 + 96648561 = 5832^2 + 9831^2 .

It is not a de Polignac number, because 130660785 - 2¹² = 130656689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7479 + ... + 17811.

It is an arithmetic number, because the mean of its divisors is an integer number (9471111).

Almost surely, 2^130660785 is an apocalyptic number.

130660785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130660785 is a deficient number, since it is larger than the sum of its proper divisors (96645879).

130660785 is a wasteful number, since it uses less digits than its factorization.

130660785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10625 (or 10622 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 130660785 is about 11430.6948607685. The cubic root of 130660785 is about 507.4365601337.

The spelling of 130660785 in words is "one hundred thirty million, six hundred sixty thousand, seven hundred eighty-five".