130144992 has 24 divisors (see below), whose sum is σ = 341630856. Its totient is φ = 43381632.

The previous prime is 130144991. The next prime is 130145009. The reversal of 130144992 is 299441031.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130144991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677743 + ... + 677934.

It is an arithmetic number, because the mean of its divisors is an integer number (14234619).

Almost surely, 2^130144992 is an apocalyptic number.

130144992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130144992 is an abundant number, since it is smaller than the sum of its proper divisors (211485864).

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

130144992 is a wasteful number, since it uses less digits than its factorization.

130144992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355690 (or 1355682 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 130144992 is about 11408.1107989009. The cubic root of 130144992 is about 506.7679652799.

The spelling of 130144992 in words is "one hundred thirty million, one hundred forty-four thousand, nine hundred ninety-two".