129629653 has 2 divisors, whose sum is σ = 129629654. Its totient is φ = 129629652.

The previous prime is 129629651. The next prime is 129629707. The reversal of 129629653 is 356926921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110208004 + 19421649 = 10498^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 129629653 - 2¹ = 129629651 is a prime.

Together with 129629651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129629651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64814826 + 64814827.

It is an arithmetic number, because the mean of its divisors is an integer number (64814827).

Almost surely, 2^129629653 is an apocalyptic number.

It is an amenable number.

129629653 is a deficient number, since it is larger than the sum of its proper divisors (1).

129629653 is an equidigital number, since it uses as much as digits as its factorization.

129629653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 43.

The square root of 129629653 is about 11385.5018773878. The cubic root of 129629653 is about 506.0981923934.

The spelling of 129629653 in words is "one hundred twenty-nine million, six hundred twenty-nine thousand, six hundred fifty-three".