129539152 has 10 divisors (see below), whose sum is σ = 250982138. Its totient is φ = 64769568.

The previous prime is 129539149. The next prime is 129539153. The reversal of 129539152 is 251935921.

It can be written as a sum of positive squares in only one way, i.e., 92621376 + 36917776 = 9624^2 + 6076^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129539153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4048083 + ... + 4048114.

Almost surely, 2^129539152 is an apocalyptic number.

It is an amenable number.

129539152 is a deficient number, since it is larger than the sum of its proper divisors (121442986).

129539152 is an equidigital number, since it uses as much as digits as its factorization.

129539152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096205 (or 8096199 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The square root of 129539152 is about 11381.5267868595. The cubic root of 129539152 is about 505.9803874144.

The spelling of 129539152 in words is "one hundred twenty-nine million, five hundred thirty-nine thousand, one hundred fifty-two".