129662 has 8 divisors (see below), whose sum is σ = 209496. Its totient is φ = 59832.

The previous prime is 129643. The next prime is 129671. The reversal of 129662 is 266921.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 4987 = 129662 / (1 + 2 + 9 + 6 + 6 + 2).

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 3 ways as a sum of consecutive naturals, for example, 2468 + ... + 2519.

It is an arithmetic number, because the mean of its divisors is an integer number (26187).

2¹²⁹⁶⁶² is an apocalyptic number.

129662 is a deficient number, since it is larger than the sum of its proper divisors (79834).

129662 is a wasteful number, since it uses less digits than its factorization.

129662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002.

The product of its digits is 1296, while the sum is 26.

The square root of 129662 is about 360.0861008148. The cubic root of 129662 is about 50.6140285120.

The spelling of 129662 in words is "one hundred twenty-nine thousand, six hundred sixty-two".