130444631 has 8 divisors (see below), whose sum is σ = 132382128. Its totient is φ = 128520000.

The previous prime is 130444627. The next prime is 130444637. The reversal of 130444631 is 136444031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130444631 - 2² = 130444627 is a prime.

It is a super-2 number, since 2×130444631² = 34031603513452322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130444631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130444637) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18251 + ... + 24371.

It is an arithmetic number, because the mean of its divisors is an integer number (16547766).

Almost surely, 2^130444631 is an apocalyptic number.

130444631 is a deficient number, since it is larger than the sum of its proper divisors (1937497).

130444631 is a wasteful number, since it uses less digits than its factorization.

130444631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 130444631 is about 11421.2359663917. The cubic root of 130444631 is about 507.1565858423.

Adding to 130444631 its reverse (136444031), we get a palindrome (266888662).

The spelling of 130444631 in words is "one hundred thirty million, four hundred forty-four thousand, six hundred thirty-one".