129130582 has 20 divisors (see below), whose sum is σ = 225973476. Its totient is φ = 55339620.

The previous prime is 129130553. The next prime is 129130597. The reversal of 129130582 is 285031921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8644 + ... + 18247.

Almost surely, 2^129130582 is an apocalyptic number.

129130582 is a deficient number, since it is larger than the sum of its proper divisors (96842894).

129130582 is an frugal number, since it uses more digits than its factorization.

129130582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26921 (or 26900 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 129130582 is about 11363.5637895864. The cubic root of 129130582 is about 505.4478685384.

The spelling of 129130582 in words is "one hundred twenty-nine million, one hundred thirty thousand, five hundred eighty-two".