129416 has 16 divisors (see below), whose sum is σ = 277440. Its totient is φ = 55440.

The previous prime is 129403. The next prime is 129419. The reversal of 129416 is 614921.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 129391 and 129400.

It is not an unprimeable number, because it can be changed into a prime (129419) by changing a digit.

129416 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (17340).

2¹²⁹⁴¹⁶ is an apocalyptic number.

It is an amenable number.

129416 is an abundant number, since it is smaller than the sum of its proper divisors (148024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129416 is a wasteful number, since it uses less digits than its factorization.

129416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324 (or 2320 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 129416 is about 359.7443536735. The cubic root of 129416 is about 50.5819992525.

It can be divided in two parts, 129 and 416, that added together give a palindrome (545).

The spelling of 129416 in words is "one hundred twenty-nine thousand, four hundred sixteen".