129107446 has 8 divisors (see below), whose sum is σ = 208558224. Its totient is φ = 59588040.

The previous prime is 129107437. The next prime is 129107453. The reversal of 129107446 is 644701921.

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

It is a super-2 number, since 2×129107446² = 33337465225285832, which contains 22 as substring.

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, 2482810 + ... + 2482861.

It is an arithmetic number, because the mean of its divisors is an integer number (26069778).

Almost surely, 2^129107446 is an apocalyptic number.

129107446 is a deficient number, since it is larger than the sum of its proper divisors (79450778).

129107446 is a wasteful number, since it uses less digits than its factorization.

129107446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965686.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 129107446 is about 11362.5457534832. The cubic root of 129107446 is about 505.4176801297.

The spelling of 129107446 in words is "one hundred twenty-nine million, one hundred seven thousand, four hundred forty-six".