130739520 has 112 divisors (see below), whose sum is σ = 439570368. Its totient is φ = 32808960.

The previous prime is 130739507. The next prime is 130739561. The reversal of 130739520 is 25937031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12315 + ... + 20325.

Almost surely, 2^130739520 is an apocalyptic number.

130739520 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 130739520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219785184).

130739520 is an abundant number, since it is smaller than the sum of its proper divisors (308830848).

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

130739520 is a wasteful number, since it uses less digits than its factorization.

130739520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8048 (or 8038 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 130739520 is about 11434.1383584422. The cubic root of 130739520 is about 507.5384652185.

The spelling of 130739520 in words is "one hundred thirty million, seven hundred thirty-nine thousand, five hundred twenty".