130031244 has 144 divisors (see below), whose sum is σ = 403603200. Its totient is φ = 35816256.

The previous prime is 130031243. The next prime is 130031263. The reversal of 130031244 is 442130031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130031243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196987 + ... + 197645.

It is an arithmetic number, because the mean of its divisors is an integer number (2802800).

Almost surely, 2^130031244 is an apocalyptic number.

130031244 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 130031244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201801600).

130031244 is an abundant number, since it is smaller than the sum of its proper divisors (273571956).

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

130031244 is a wasteful number, since it uses less digits than its factorization.

130031244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130031244 is about 11403.1243087147. The cubic root of 130031244 is about 506.6202821880.

Adding to 130031244 its reverse (442130031), we get a palindrome (572161275).

The spelling of 130031244 in words is "one hundred thirty million, thirty-one thousand, two hundred forty-four".