129963337 has 6 divisors (see below), whose sum is σ = 151181898. Its totient is φ = 111397104.

The previous prime is 129963293. The next prime is 129963341. The reversal of 129963337 is 733369921.

It can be written as a sum of positive squares in only one way, i.e., 129709321 + 254016 = 11389^2 + 504^2 .

It is not a de Polignac number, because 129963337 - 2⁷ = 129963209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129963293 and 129963302.

It is not an unprimeable number, because it can be changed into a prime (129963437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1326108 + ... + 1326205.

It is an arithmetic number, because the mean of its divisors is an integer number (25196983).

Almost surely, 2^129963337 is an apocalyptic number.

It is an amenable number.

129963337 is a deficient number, since it is larger than the sum of its proper divisors (21218561).

129963337 is an equidigital number, since it uses as much as digits as its factorization.

129963337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652327 (or 2652320 counting only the distinct ones).

The product of its digits is 183708, while the sum is 43.

The square root of 129963337 is about 11400.1463587096. The cubic root of 129963337 is about 506.5320750438.

The spelling of 129963337 in words is "one hundred twenty-nine million, nine hundred sixty-three thousand, three hundred thirty-seven".