129452366 has 8 divisors (see below), whose sum is σ = 195661224. Its totient is φ = 64231960.

The previous prime is 129452363. The next prime is 129452371. The reversal of 129452366 is 663254921.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129452363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246785 + ... + 247308.

It is an arithmetic number, because the mean of its divisors is an integer number (24457653).

Almost surely, 2^129452366 is an apocalyptic number.

129452366 is a deficient number, since it is larger than the sum of its proper divisors (66208858).

129452366 is a wasteful number, since it uses less digits than its factorization.

129452366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494226.

The product of its digits is 77760, while the sum is 38.

The square root of 129452366 is about 11377.7135664421. The cubic root of 129452366 is about 505.8673666962.

The spelling of 129452366 in words is "one hundred twenty-nine million, four hundred fifty-two thousand, three hundred sixty-six".