130319181 has 6 divisors (see below), whose sum is σ = 188238830. Its totient is φ = 86879448.

The previous prime is 130319149. The next prime is 130319183. The reversal of 130319181 is 181913031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 125216100 + 5103081 = 11190^2 + 2259^2 .

It is not a de Polignac number, because 130319181 - 2⁵ = 130319149 is a prime.

It is a super-2 number, since 2×130319181² = 33966177873021522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130319183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7239946 + ... + 7239963.

Almost surely, 2^130319181 is an apocalyptic number.

It is an amenable number.

130319181 is a deficient number, since it is larger than the sum of its proper divisors (57919649).

130319181 is a wasteful number, since it uses less digits than its factorization.

130319181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14479915 (or 14479912 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 130319181 is about 11415.7426828043. The cubic root of 130319181 is about 506.9939543880.

The spelling of 130319181 in words is "one hundred thirty million, three hundred nineteen thousand, one hundred eighty-one".