129645352 has 16 divisors (see below), whose sum is σ = 245237940. Its totient is φ = 64248576.

The previous prime is 129645323. The next prime is 129645353. The reversal of 129645352 is 253546921.

It can be written as a sum of positive squares in 2 ways, for example, as 129640996 + 4356 = 11386^2 + 66^2 .

It is not an unprimeable number, because it can be changed into a prime (129645353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70803 + ... + 72610.

Almost surely, 2^129645352 is an apocalyptic number.

It is an amenable number.

129645352 is a deficient number, since it is larger than the sum of its proper divisors (115592588).

129645352 is a wasteful number, since it uses less digits than its factorization.

129645352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143532 (or 143528 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 129645352 is about 11386.1912859393. The cubic root of 129645352 is about 506.1186221706.

The spelling of 129645352 in words is "one hundred twenty-nine million, six hundred forty-five thousand, three hundred fifty-two".