129037539 has 8 divisors (see below), whose sum is σ = 176051392. Its totient is φ = 84024360.

The previous prime is 129037523. The next prime is 129037549. The reversal of 129037539 is 935730921.

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

It is not a de Polignac number, because 129037539 - 2⁴ = 129037523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129037497 and 129037506.

It is not an unprimeable number, because it can be changed into a prime (129037549) 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, 500017 + ... + 500274.

It is an arithmetic number, because the mean of its divisors is an integer number (22006424).

Almost surely, 2^129037539 is an apocalyptic number.

129037539 is a deficient number, since it is larger than the sum of its proper divisors (47013853).

129037539 is a wasteful number, since it uses less digits than its factorization.

129037539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000337.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 129037539 is about 11359.4691337228. The cubic root of 129037539 is about 505.3264418786.

The spelling of 129037539 in words is "one hundred twenty-nine million, thirty-seven thousand, five hundred thirty-nine".