129413361 has 48 divisors (see below), whose sum is σ = 220762368. Its totient is φ = 66679200.

The previous prime is 129413321. The next prime is 129413369. The reversal of 129413361 is 163314921.

It is not a de Polignac number, because 129413361 - 2⁹ = 129412849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129413369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 263326 + ... + 263816.

It is an arithmetic number, because the mean of its divisors is an integer number (4599216).

Almost surely, 2^129413361 is an apocalyptic number.

129413361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129413361 is a deficient number, since it is larger than the sum of its proper divisors (91349007).

129413361 is a wasteful number, since it uses less digits than its factorization.

129413361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 675 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 129413361 is about 11375.9993407173. Note that the first 3 decimals coincide. The cubic root of 129413361 is about 505.8165543413.

The spelling of 129413361 in words is "one hundred twenty-nine million, four hundred thirteen thousand, three hundred sixty-one".