130722650 has 12 divisors (see below), whose sum is σ = 243144222. Its totient is φ = 52289040.

The previous prime is 130722569. The next prime is 130722661. The reversal of 130722650 is 56227031.

It can be written as a sum of positive squares in 3 ways, for example, as 83704201 + 47018449 = 9149^2 + 6857^2 .

It is a super-2 number, since 2×130722650² = 34176822446045000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1307177 + ... + 1307276.

Almost surely, 2^130722650 is an apocalyptic number.

130722650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130722650 is a deficient number, since it is larger than the sum of its proper divisors (112421572).

130722650 is a wasteful number, since it uses less digits than its factorization.

130722650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614465 (or 2614460 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 130722650 is about 11433.4006314832. The cubic root of 130722650 is about 507.5166341705.

Adding to 130722650 its reverse (56227031), we get a palindrome (186949681).

The spelling of 130722650 in words is "one hundred thirty million, seven hundred twenty-two thousand, six hundred fifty".