129675446 has 8 divisors (see below), whose sum is σ = 194722704. Its totient is φ = 64767880.

The previous prime is 129675433. The next prime is 129675457. The reversal of 129675446 is 644576921.

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

It is a junction number, because it is equal to n+sod(n) for n = 129675397 and 129675406.

It is a congruent number.

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, 32570 + ... + 36333.

It is an arithmetic number, because the mean of its divisors is an integer number (24340338).

Almost surely, 2^129675446 is an apocalyptic number.

129675446 is a deficient number, since it is larger than the sum of its proper divisors (65047258).

129675446 is an equidigital number, since it uses as much as digits as its factorization.

129675446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69846.

The product of its digits is 362880, while the sum is 44.

The square root of 129675446 is about 11387.5127222761. The cubic root of 129675446 is about 506.1577801639.

The spelling of 129675446 in words is "one hundred twenty-nine million, six hundred seventy-five thousand, four hundred forty-six".