130331544 has 64 divisors (see below), whose sum is σ = 373232640. Its totient is φ = 37152000.

The previous prime is 130331519. The next prime is 130331561. The reversal of 130331544 is 445133031.

It is a happy number.

It is a super-2 number, since 2×130331544² = 33972622722847872, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125652 + ... + 126684.

It is an arithmetic number, because the mean of its divisors is an integer number (5831760).

Almost surely, 2^130331544 is an apocalyptic number.

130331544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

130331544 is an abundant number, since it is smaller than the sum of its proper divisors (242901096).

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

130331544 is a wasteful number, since it uses less digits than its factorization.

130331544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1796 counting only the distinct ones).

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

The square root of 130331544 is about 11416.2841590423. The cubic root of 130331544 is about 507.0099862261.

Adding to 130331544 its reverse (445133031), we get a palindrome (575464575).

The spelling of 130331544 in words is "one hundred thirty million, three hundred thirty-one thousand, five hundred forty-four".