130138249 has 2 divisors, whose sum is σ = 130138250. Its totient is φ = 130138248.

The previous prime is 130138219. The next prime is 130138271. The reversal of 130138249 is 942831031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65496649 + 64641600 = 8093^2 + 8040^2 .

It is an emirp because it is prime and its reverse (942831031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130138249 - 2⁷ = 130138121 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130138249.

It is not a weakly prime, because it can be changed into another prime (130138219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65069124 + 65069125.

It is an arithmetic number, because the mean of its divisors is an integer number (65069125).

Almost surely, 2^130138249 is an apocalyptic number.

It is an amenable number.

130138249 is a deficient number, since it is larger than the sum of its proper divisors (1).

130138249 is an equidigital number, since it uses as much as digits as its factorization.

130138249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 130138249 is about 11407.8152597244. The cubic root of 130138249 is about 506.7592130020.

The spelling of 130138249 in words is "one hundred thirty million, one hundred thirty-eight thousand, two hundred forty-nine".