129532339 has 2 divisors, whose sum is σ = 129532340. Its totient is φ = 129532338.

The previous prime is 129532331. The next prime is 129532349. The reversal of 129532339 is 933235921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129532339 - 2³ = 129532331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129532298 and 129532307.

It is not a weakly prime, because it can be changed into another prime (129532331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64766169 + 64766170.

It is an arithmetic number, because the mean of its divisors is an integer number (64766170).

Almost surely, 2^129532339 is an apocalyptic number.

129532339 is a deficient number, since it is larger than the sum of its proper divisors (1).

129532339 is an equidigital number, since it uses as much as digits as its factorization.

129532339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 37.

The square root of 129532339 is about 11381.2274821304. The cubic root of 129532339 is about 505.9715167248.

The spelling of 129532339 in words is "one hundred twenty-nine million, five hundred thirty-two thousand, three hundred thirty-nine".