129448282 has 4 divisors (see below), whose sum is σ = 194172426. Its totient is φ = 64724140.

The previous prime is 129448259. The next prime is 129448309. The reversal of 129448282 is 282844921.

129448282 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 282844921 = 3037 ⋅93133.

It can be written as a sum of positive squares in only one way, i.e., 65464281 + 63984001 = 8091^2 + 7999^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32362069 + ... + 32362072.

Almost surely, 2^129448282 is an apocalyptic number.

129448282 is a deficient number, since it is larger than the sum of its proper divisors (64724144).

129448282 is an equidigital number, since it uses as much as digits as its factorization.

129448282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64724143.

The product of its digits is 73728, while the sum is 40.

The square root of 129448282 is about 11377.5340913574. The cubic root of 129448282 is about 505.8620468912.

The spelling of 129448282 in words is "one hundred twenty-nine million, four hundred forty-eight thousand, two hundred eighty-two".