129746207 has 8 divisors (see below), whose sum is σ = 132692400. Its totient is φ = 126826560.

The previous prime is 129746189. The next prime is 129746219. The reversal of 129746207 is 702647921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129746207 - 2¹² = 129742111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129746257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3419 + ... + 16467.

It is an arithmetic number, because the mean of its divisors is an integer number (16586550).

Almost surely, 2^129746207 is an apocalyptic number.

129746207 is a deficient number, since it is larger than the sum of its proper divisors (2946193).

129746207 is a wasteful number, since it uses less digits than its factorization.

129746207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13273.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 129746207 is about 11390.6192544567. The cubic root of 129746207 is about 506.2498297617.

The spelling of 129746207 in words is "one hundred twenty-nine million, seven hundred forty-six thousand, two hundred seven".