130144236 has 12 divisors (see below), whose sum is σ = 303669912. Its totient is φ = 43381408.

The previous prime is 130144219. The next prime is 130144241. The reversal of 130144236 is 632441031.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5422665 + ... + 5422688.

It is an arithmetic number, because the mean of its divisors is an integer number (25305826).

Almost surely, 2^130144236 is an apocalyptic number.

It is an amenable number.

130144236 is an abundant number, since it is smaller than the sum of its proper divisors (173525676).

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

130144236 is a wasteful number, since it uses less digits than its factorization.

130144236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845360 (or 10845358 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 130144236 is about 11408.0776645323. The cubic root of 130144236 is about 506.7669840222.

Adding to 130144236 its reverse (632441031), we get a palindrome (762585267).

The spelling of 130144236 in words is "one hundred thirty million, one hundred forty-four thousand, two hundred thirty-six".