129107046 has 16 divisors (see below), whose sum is σ = 263086704. Its totient is φ = 42223584.

The previous prime is 129107029. The next prime is 129107051. The reversal of 129107046 is 640701921.

It is a happy number.

It is a super-2 number, since 2×129107046² = 33337258653692232, 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 7 ways as a sum of consecutive naturals, for example, 202681 + ... + 203316.

It is an arithmetic number, because the mean of its divisors is an integer number (16442919).

Almost surely, 2^129107046 is an apocalyptic number.

129107046 is an abundant number, since it is smaller than the sum of its proper divisors (133979658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129107046 is a wasteful number, since it uses less digits than its factorization.

129107046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406055.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 129107046 is about 11362.5281517803. The cubic root of 129107046 is about 505.4171581684.

Adding to 129107046 its reverse (640701921), we get a palindrome (769808967).

The spelling of 129107046 in words is "one hundred twenty-nine million, one hundred seven thousand, forty-six".