130978818 has 24 divisors (see below), whose sum is σ = 298724400. Its totient is φ = 41361624.

The previous prime is 130978789. The next prime is 130978831. The reversal of 130978818 is 818879031.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191148 + ... + 191831.

It is an arithmetic number, because the mean of its divisors is an integer number (12446850).

Almost surely, 2^130978818 is an apocalyptic number.

130978818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

130978818 is an abundant number, since it is smaller than the sum of its proper divisors (167745582).

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

130978818 is a wasteful number, since it uses less digits than its factorization.

130978818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383006 (or 383003 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 130978818 is about 11444.5977648845. The cubic root of 130978818 is about 507.8479327633.

The spelling of 130978818 in words is "one hundred thirty million, nine hundred seventy-eight thousand, eight hundred eighteen".