130507720 has 96 divisors (see below), whose sum is σ = 344508480. Its totient is φ = 43585920.

The previous prime is 130507711. The next prime is 130507723. The reversal of 130507720 is 27705031.

It is not an unprimeable number, because it can be changed into a prime (130507723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 618415 + ... + 618625.

It is an arithmetic number, because the mean of its divisors is an integer number (3588630).

Almost surely, 2^130507720 is an apocalyptic number.

130507720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130507720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172254240).

130507720 is an abundant number, since it is smaller than the sum of its proper divisors (214000760).

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

130507720 is a wasteful number, since it uses less digits than its factorization.

130507720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 130507720 is about 11423.9975490193. The cubic root of 130507720 is about 507.2383340516.

The spelling of 130507720 in words is "one hundred thirty million, five hundred seven thousand, seven hundred twenty".