129361416 has 16 divisors (see below), whose sum is σ = 323403600. Its totient is φ = 43120464.

The previous prime is 129361399. The next prime is 129361423. The reversal of 129361416 is 614163921.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695006 + ... + 2695053.

It is an arithmetic number, because the mean of its divisors is an integer number (20212725).

Almost surely, 2^129361416 is an apocalyptic number.

It is an amenable number.

129361416 is an abundant number, since it is smaller than the sum of its proper divisors (194042184).

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

129361416 is a wasteful number, since it uses less digits than its factorization.

129361416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390068 (or 5390064 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 129361416 is about 11373.7160154454. The cubic root of 129361416 is about 505.7488690138.

It can be divided in two parts, 129 and 361416, that multiplied together give a palindrome (46622664).

The spelling of 129361416 in words is "one hundred twenty-nine million, three hundred sixty-one thousand, four hundred sixteen".