129852242 has 24 divisors (see below), whose sum is σ = 216787788. Its totient is φ = 57987360.

The previous prime is 129852241. The next prime is 129852259. The reversal of 129852242 is 242258921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123854641 + 5997601 = 11129^2 + 2449^2 .

It is not an unprimeable number, because it can be changed into a prime (129852241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22388 + ... + 27584.

Almost surely, 2^129852242 is an apocalyptic number.

129852242 is a deficient number, since it is larger than the sum of its proper divisors (86935546).

129852242 is a wasteful number, since it uses less digits than its factorization.

129852242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274 (or 5243 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 129852242 is about 11395.2727918203. The cubic root of 129852242 is about 506.3877029866.

The spelling of 129852242 in words is "one hundred twenty-nine million, eight hundred fifty-two thousand, two hundred forty-two".