130138752 has 64 divisors (see below), whose sum is σ = 363895200. Its totient is φ = 41094144.

The previous prime is 130138727. The next prime is 130138753. The reversal of 130138752 is 257831031.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (130138753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623 + ... + 16214.

Almost surely, 2^130138752 is an apocalyptic number.

130138752 is a gapful number since it is divisible by the number (12) 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 130138752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181947600).

130138752 is an abundant number, since it is smaller than the sum of its proper divisors (233756448).

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

130138752 is a wasteful number, since it uses less digits than its factorization.

130138752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17873 (or 17861 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 130138752 is about 11407.8373059928. The cubic root of 130138752 is about 506.7598658963.

Adding to 130138752 its reverse (257831031), we get a palindrome (387969783).

The spelling of 130138752 in words is "one hundred thirty million, one hundred thirty-eight thousand, seven hundred fifty-two".