129924653 has 2 divisors, whose sum is σ = 129924654. Its totient is φ = 129924652.

The previous prime is 129924647. The next prime is 129924661. The reversal of 129924653 is 356429921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128640964 + 1283689 = 11342^2 + 1133^2 .

It is an emirp because it is prime and its reverse (356429921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129924653 - 2⁶ = 129924589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129924653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129924623) 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, 64962326 + 64962327.

It is an arithmetic number, because the mean of its divisors is an integer number (64962327).

Almost surely, 2^129924653 is an apocalyptic number.

It is an amenable number.

129924653 is a deficient number, since it is larger than the sum of its proper divisors (1).

129924653 is an equidigital number, since it uses as much as digits as its factorization.

129924653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 129924653 is about 11398.4495875536. The cubic root of 129924653 is about 506.4818130963.

It can be divided in two parts, 1299 and 24653, that added together give a palindrome (25952).

The spelling of 129924653 in words is "one hundred twenty-nine million, nine hundred twenty-four thousand, six hundred fifty-three".