129953 has 2 divisors, whose sum is σ = 129954. Its totient is φ = 129952.

The previous prime is 129937. The next prime is 129959. The reversal of 129953 is 359921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113569 + 16384 = 337^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 129953 - 2⁴ = 129937 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129959) 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, 64976 + 64977.

It is an arithmetic number, because the mean of its divisors is an integer number (64977).

2¹²⁹⁹⁵³ is an apocalyptic number.

It is an amenable number.

129953 is a deficient number, since it is larger than the sum of its proper divisors (1).

129953 is an equidigital number, since it uses as much as digits as its factorization.

129953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 29.

The square root of 129953 is about 360.4899443813. The cubic root of 129953 is about 50.6518645203.

The spelling of 129953 in words is "one hundred twenty-nine thousand, nine hundred fifty-three".