129441066 has 16 divisors (see below), whose sum is σ = 261792000. Its totient is φ = 42662048.

The previous prime is 129441061. The next prime is 129441083. The reversal of 129441066 is 660144921.

It is not an unprimeable number, because it can be changed into a prime (129441061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120666 + ... + 121733.

It is an arithmetic number, because the mean of its divisors is an integer number (16362000).

Almost surely, 2^129441066 is an apocalyptic number.

129441066 is an abundant number, since it is smaller than the sum of its proper divisors (132350934).

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

129441066 is a wasteful number, since it uses less digits than its factorization.

129441066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242493.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 129441066 is about 11377.2169707710. The cubic root of 129441066 is about 505.8526470796.

Adding to 129441066 its reverse (660144921), we get a palindrome (789585987).

The spelling of 129441066 in words is "one hundred twenty-nine million, four hundred forty-one thousand, sixty-six".