129363442 has 8 divisors (see below), whose sum is σ = 208971756. Its totient is φ = 59706192.

The previous prime is 129363413. The next prime is 129363497. The reversal of 129363442 is 244363921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 125238481 + 4124961 = 11191^2 + 2031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 129363398 and 129363407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2487733 + ... + 2487784.

Almost surely, 2^129363442 is an apocalyptic number.

129363442 is a deficient number, since it is larger than the sum of its proper divisors (79608314).

129363442 is a wasteful number, since it uses less digits than its factorization.

129363442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975532.

The product of its digits is 31104, while the sum is 34.

The square root of 129363442 is about 11373.8050800952. The cubic root of 129363442 is about 505.7515092701.

The spelling of 129363442 in words is "one hundred twenty-nine million, three hundred sixty-three thousand, four hundred forty-two".