130899640 has 16 divisors (see below), whose sum is σ = 294524280. Its totient is φ = 52359840.

The previous prime is 130899631. The next prime is 130899641. The reversal of 130899640 is 46998031.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 3272491 = 130899640 / (1 + 3 + 0 + 8 + 9 + 9 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 130899593 and 130899602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130899641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636206 + ... + 1636285.

Almost surely, 2^130899640 is an apocalyptic number.

130899640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130899640 is an abundant number, since it is smaller than the sum of its proper divisors (163624640).

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

130899640 is a wasteful number, since it uses less digits than its factorization.

130899640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272502 (or 3272498 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 130899640 is about 11441.1380552810. The cubic root of 130899640 is about 507.7455790914.

The spelling of 130899640 in words is "one hundred thirty million, eight hundred ninety-nine thousand, six hundred forty".