129615453 has 24 divisors (see below), whose sum is σ = 207301536. Its totient is φ = 77378400.

The previous prime is 129615449. The next prime is 129615467. The reversal of 129615453 is 354516921.

It is not a de Polignac number, because 129615453 - 2² = 129615449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129615443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3138 + ... + 16403.

It is an arithmetic number, because the mean of its divisors is an integer number (8637564).

Almost surely, 2^129615453 is an apocalyptic number.

It is an amenable number.

129615453 is a deficient number, since it is larger than the sum of its proper divisors (77686083).

129615453 is a wasteful number, since it uses less digits than its factorization.

129615453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625 (or 19622 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 129615453 is about 11384.8782602187. The cubic root of 129615453 is about 506.0797119079.

The spelling of 129615453 in words is "one hundred twenty-nine million, six hundred fifteen thousand, four hundred fifty-three".