130280724 has 240 divisors, whose sum is σ = 429327360. Its totient is φ = 33592320.

The previous prime is 130280719. The next prime is 130280729. The reversal of 130280724 is 427082031.

It is an interprime number because it is at equal distance from previous prime (130280719) and next prime (130280729).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130280729) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1195182 + ... + 1195290.

It is an arithmetic number, because the mean of its divisors is an integer number (1788864).

Almost surely, 2^130280724 is an apocalyptic number.

130280724 is a gapful number since it is divisible by the number (14) 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 130280724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214663680).

130280724 is an abundant number, since it is smaller than the sum of its proper divisors (299046636).

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

130280724 is a wasteful number, since it uses less digits than its factorization.

130280724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 130280724 is about 11414.0581740238. The cubic root of 130280724 is about 506.9440784230.

The spelling of 130280724 in words is "one hundred thirty million, two hundred eighty thousand, seven hundred twenty-four".