129937253 has 2 divisors, whose sum is σ = 129937254. Its totient is φ = 129937252.

The previous prime is 129937211. The next prime is 129937261. The reversal of 129937253 is 352739921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119290084 + 10647169 = 10922^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 129937253 - 2¹⁰ = 129936229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129937253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129937453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64968626 + 64968627.

It is an arithmetic number, because the mean of its divisors is an integer number (64968627).

Almost surely, 2^129937253 is an apocalyptic number.

It is an amenable number.

129937253 is a deficient number, since it is larger than the sum of its proper divisors (1).

129937253 is an equidigital number, since it uses as much as digits as its factorization.

129937253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 41.

The square root of 129937253 is about 11399.0022809016. The cubic root of 129937253 is about 506.4981853151.

The spelling of 129937253 in words is "one hundred twenty-nine million, nine hundred thirty-seven thousand, two hundred fifty-three".