130253640 has 128 divisors (see below), whose sum is σ = 430945920. Its totient is φ = 31232000.

The previous prime is 130253639. The next prime is 130253663. The reversal of 130253640 is 46352031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 130253640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132832 + ... + 133808.

It is an arithmetic number, because the mean of its divisors is an integer number (3366765).

Almost surely, 2^130253640 is an apocalyptic number.

130253640 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 130253640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215472960).

130253640 is an abundant number, since it is smaller than the sum of its proper divisors (300692280).

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

130253640 is a wasteful number, since it uses less digits than its factorization.

130253640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 130253640 is about 11412.8716806946. The cubic root of 130253640 is about 506.9089465310.

The spelling of 130253640 in words is "one hundred thirty million, two hundred fifty-three thousand, six hundred forty".