129331050 has 24 divisors (see below), whose sum is σ = 320741376. Its totient is φ = 34488240.

The previous prime is 129331049. The next prime is 129331063. The reversal of 129331050 is 50133921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 129331050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430954 + ... + 431253.

It is an arithmetic number, because the mean of its divisors is an integer number (13364224).

Almost surely, 2^129331050 is an apocalyptic number.

129331050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129331050 is an abundant number, since it is smaller than the sum of its proper divisors (191410326).

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

129331050 is a wasteful number, since it uses less digits than its factorization.

129331050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862222 (or 862217 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 129331050 is about 11372.3810171837. The cubic root of 129331050 is about 505.7092931432.

Adding to 129331050 its reverse (50133921), we get a palindrome (179464971).

The spelling of 129331050 in words is "one hundred twenty-nine million, three hundred thirty-one thousand, fifty".