129846913 has 12 divisors (see below), whose sum is σ = 152547732. Its totient is φ = 110191200.

The previous prime is 129846911. The next prime is 129846917. The reversal of 129846913 is 319648921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76440049 + 53406864 = 8743^2 + 7308^2 .

It is not a de Polignac number, because 129846913 - 2¹ = 129846911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129846913.

It is not an unprimeable number, because it can be changed into a prime (129846911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8170 + ... + 18067.

It is an arithmetic number, because the mean of its divisors is an integer number (12712311).

Almost surely, 2^129846913 is an apocalyptic number.

It is an amenable number.

129846913 is a deficient number, since it is larger than the sum of its proper divisors (22700819).

129846913 is a wasteful number, since it uses less digits than its factorization.

129846913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26352 (or 26345 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 129846913 is about 11395.0389643915. The cubic root of 129846913 is about 506.3807756849.

The spelling of 129846913 in words is "one hundred twenty-nine million, eight hundred forty-six thousand, nine hundred thirteen".