129302922 has 64 divisors (see below), whose sum is σ = 311721984. Its totient is φ = 34974720.

The previous prime is 129302917. The next prime is 129302933. The reversal of 129302922 is 229203921.

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 129302922.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60138 + ... + 62250.

It is an arithmetic number, because the mean of its divisors is an integer number (4870656).

Almost surely, 2^129302922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129302922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155860992).

129302922 is an abundant number, since it is smaller than the sum of its proper divisors (182419062).

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

129302922 is a wasteful number, since it uses less digits than its factorization.

129302922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 129302922 is about 11371.1442695975. The cubic root of 129302922 is about 505.6726285208.

Subtracting 129302922 from its reverse (229203921), we obtain a palindrome (99900999).

The spelling of 129302922 in words is "one hundred twenty-nine million, three hundred two thousand, nine hundred twenty-two".