130139380 has 48 divisors (see below), whose sum is σ = 318245760. Its totient is φ = 43774848.

The previous prime is 130139377. The next prime is 130139389. The reversal of 130139380 is 83931031.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130139389) 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, 1350 + ... + 16189.

It is an arithmetic number, because the mean of its divisors is an integer number (6630120).

Almost surely, 2^130139380 is an apocalyptic number.

130139380 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 130139380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159122880).

130139380 is an abundant number, since it is smaller than the sum of its proper divisors (188106380).

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

130139380 is a wasteful number, since it uses less digits than its factorization.

130139380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17608 (or 17606 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 130139380 is about 11407.8648308963. The cubic root of 130139380 is about 506.7606810383.

The spelling of 130139380 in words is "one hundred thirty million, one hundred thirty-nine thousand, three hundred eighty".