130972818 has 8 divisors (see below), whose sum is σ = 261945648. Its totient is φ = 43657604.

The previous prime is 130972801. The next prime is 130972823. The reversal of 130972818 is 818279031.

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

130972818 is an admirable number.

It is a super-2 number, since 2×130972818² = 34307758109722248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10914396 + ... + 10914407.

It is an arithmetic number, because the mean of its divisors is an integer number (32743206).

Almost surely, 2^130972818 is an apocalyptic number.

130972818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

130972818 is a wasteful number, since it uses less digits than its factorization.

130972818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21828808.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 130972818 is about 11444.3356294719. The cubic root of 130972818 is about 507.8401779874.

The spelling of 130972818 in words is "one hundred thirty million, nine hundred seventy-two thousand, eight hundred eighteen".