129038539 has 8 divisors (see below), whose sum is σ = 147621600. Its totient is φ = 110492736.

The previous prime is 129038513. The next prime is 129038561. The reversal of 129038539 is 935830921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129038539 - 2²⁵ = 95484107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129038639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444 + ... + 16129.

It is an arithmetic number, because the mean of its divisors is an integer number (18452700).

Almost surely, 2^129038539 is an apocalyptic number.

129038539 is a deficient number, since it is larger than the sum of its proper divisors (18583061).

129038539 is a wasteful number, since it uses less digits than its factorization.

129038539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18629.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 129038539 is about 11359.5131497789. The cubic root of 129038539 is about 505.3277472485.

The spelling of 129038539 in words is "one hundred twenty-nine million, thirty-eight thousand, five hundred thirty-nine".