130323144 has 48 divisors (see below), whose sum is σ = 379004400. Its totient is φ = 37234848.

The previous prime is 130323143. The next prime is 130323157. The reversal of 130323144 is 441323031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 130323144.

It is not an unprimeable number, because it can be changed into a prime (130323143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54234 + ... + 56585.

It is an arithmetic number, because the mean of its divisors is an integer number (7895925).

Almost surely, 2^130323144 is an apocalyptic number.

130323144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

130323144 is an abundant number, since it is smaller than the sum of its proper divisors (248681256).

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

130323144 is a wasteful number, since it uses less digits than its factorization.

130323144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110842 (or 110831 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 130323144 is about 11415.9162575765. The cubic root of 130323144 is about 506.9990935564. Note that the first 3 decimals are identical.

Adding to 130323144 its reverse (441323031), we get a palindrome (571646175).

The spelling of 130323144 in words is "one hundred thirty million, three hundred twenty-three thousand, one hundred forty-four".