130120181 has 2 divisors, whose sum is σ = 130120182. Its totient is φ = 130120180.

The previous prime is 130120169. The next prime is 130120201. The reversal of 130120181 is 181021031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115756081 + 14364100 = 10759^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 130120181 - 2²⁶ = 63011317 is a prime.

It is a super-2 number, since 2×130120181² = 33862523006945522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130120121) 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 as a sum of consecutive naturals, namely, 65060090 + 65060091.

It is an arithmetic number, because the mean of its divisors is an integer number (65060091).

Almost surely, 2^130120181 is an apocalyptic number.

It is an amenable number.

130120181 is a deficient number, since it is larger than the sum of its proper divisors (1).

130120181 is an equidigital number, since it uses as much as digits as its factorization.

130120181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 130120181 is about 11407.0233189908. The cubic root of 130120181 is about 506.7357596122.

The spelling of 130120181 in words is "one hundred thirty million, one hundred twenty thousand, one hundred eighty-one".