130990818 has 48 divisors (see below), whose sum is σ = 312215904. Its totient is φ = 36509760.

The previous prime is 130990801. The next prime is 130990861. The reversal of 130990818 is 818099031.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 6621 + ... + 17487.

It is an arithmetic number, because the mean of its divisors is an integer number (6504498).

Almost surely, 2^130990818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130990818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156107952).

130990818 is an abundant number, since it is smaller than the sum of its proper divisors (181225086).

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

130990818 is a wasteful number, since it uses less digits than its factorization.

130990818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10927 (or 10920 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 130990818 is about 11445.1220176982. The cubic root of 130990818 is about 507.8634416045.

The spelling of 130990818 in words is "one hundred thirty million, nine hundred ninety thousand, eight hundred eighteen".