129364746 has 16 divisors (see below), whose sum is σ = 295690944. Its totient is φ = 36961344.

The previous prime is 129364721. The next prime is 129364751. The reversal of 129364746 is 647463921.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 3080113 = 129364746 / (1 + 2 + 9 + 3 + 6 + 4 + 7 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 129364698 and 129364707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540015 + ... + 1540098.

It is an arithmetic number, because the mean of its divisors is an integer number (18480684).

Almost surely, 2^129364746 is an apocalyptic number.

129364746 is an abundant number, since it is smaller than the sum of its proper divisors (166326198).

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

129364746 is a wasteful number, since it uses less digits than its factorization.

129364746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080125.

The product of its digits is 217728, while the sum is 42.

The square root of 129364746 is about 11373.8624046539. The cubic root of 129364746 is about 505.7532086109.

The spelling of 129364746 in words is "one hundred twenty-nine million, three hundred sixty-four thousand, seven hundred forty-six".