129608452 has 24 divisors (see below), whose sum is σ = 229870872. Its totient is φ = 63936000.

The previous prime is 129608449. The next prime is 129608471. The reversal of 129608452 is 254806921.

It can be written as a sum of positive squares in 4 ways, for example, as 52765696 + 76842756 = 7264^2 + 8766^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218268 + ... + 218860.

It is an arithmetic number, because the mean of its divisors is an integer number (9577953).

Almost surely, 2^129608452 is an apocalyptic number.

It is an amenable number.

129608452 is a deficient number, since it is larger than the sum of its proper divisors (100262420).

129608452 is a wasteful number, since it uses less digits than its factorization.

129608452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 129608452 is about 11384.5707868149. The cubic root of 129608452 is about 506.0706000112.

It can be divided in two parts, 12960 and 8452, that added together give a palindrome (21412).

The spelling of 129608452 in words is "one hundred twenty-nine million, six hundred eight thousand, four hundred fifty-two".