129282002 has 4 divisors (see below), whose sum is σ = 193923006. Its totient is φ = 64641000.

The previous prime is 129281981. The next prime is 129282017. The reversal of 129282002 is 200282921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 127938721 + 1343281 = 11311^2 + 1159^2 .

It is a super-2 number, since 2×129282002² = 33427672082256008, which contains 22 as substring.

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, 32320499 + ... + 32320502.

Almost surely, 2^129282002 is an apocalyptic number.

129282002 is a deficient number, since it is larger than the sum of its proper divisors (64641004).

129282002 is an equidigital number, since it uses as much as digits as its factorization.

129282002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64641003.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 129282002 is about 11370.2243601435. The cubic root of 129282002 is about 505.6453560205.

The spelling of 129282002 in words is "one hundred twenty-nine million, two hundred eighty-two thousand, two".