130722810 has 32 divisors (see below), whose sum is σ = 314122752. Its totient is φ = 34816320.

The previous prime is 130722799. The next prime is 130722811. The reversal of 130722810 is 18227031.

It is a super-2 number, since 2×130722810² = 34176906108592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130722811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27532 + ... + 31928.

It is an arithmetic number, because the mean of its divisors is an integer number (9816336).

Almost surely, 2^130722810 is an apocalyptic number.

130722810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130722810 is an abundant number, since it is smaller than the sum of its proper divisors (183399942).

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

130722810 is a wasteful number, since it uses less digits than its factorization.

130722810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5398.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 130722810 is about 11433.4076285244. The cubic root of 130722810 is about 507.5168412313.

Adding to 130722810 its reverse (18227031), we get a palindrome (148949841).

The spelling of 130722810 in words is "one hundred thirty million, seven hundred twenty-two thousand, eight hundred ten".