129513 has 8 divisors (see below), whose sum is σ = 180288. Its totient is φ = 82544.

The previous prime is 129509. The next prime is 129517. The reversal of 129513 is 315921.

It is an interprime number because it is at equal distance from previous prime (129509) and next prime (129517).

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 129513 - 2² = 129509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129513.

It is not an unprimeable number, because it can be changed into a prime (129517) 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, 870 + ... + 1007.

It is an arithmetic number, because the mean of its divisors is an integer number (22536).

2¹²⁹⁵¹³ is an apocalyptic number.

It is an amenable number.

129513 is a deficient number, since it is larger than the sum of its proper divisors (50775).

129513 is a wasteful number, since it uses less digits than its factorization.

129513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903.

The product of its digits is 270, while the sum is 21.

The square root of 129513 is about 359.8791463811. The cubic root of 129513 is about 50.5946335188.

The spelling of 129513 in words is "one hundred twenty-nine thousand, five hundred thirteen".