129133046 has 16 divisors (see below), whose sum is σ = 221958144. Its totient is φ = 55195944.

The previous prime is 129133033. The next prime is 129133051. The reversal of 129133046 is 640331921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6680 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (13872384).

Almost surely, 2^129133046 is an apocalyptic number.

129133046 is a deficient number, since it is larger than the sum of its proper divisors (92825098).

129133046 is a wasteful number, since it uses less digits than its factorization.

129133046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24475.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 129133046 is about 11363.6722057617. The cubic root of 129133046 is about 505.4510834124.

Adding to 129133046 its reverse (640331921), we get a palindrome (769464967).

The spelling of 129133046 in words is "one hundred twenty-nine million, one hundred thirty-three thousand, forty-six".