129264506 has 8 divisors (see below), whose sum is σ = 221596320. Its totient is φ = 55399068.

The previous prime is 129264497. The next prime is 129264511. The reversal of 129264506 is 605462921.

It is a happy number.

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

It is a super-2 number, since 2×129264506² = 33418625022848072, 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 in 3 ways as a sum of consecutive naturals, for example, 4616576 + ... + 4616603.

It is an arithmetic number, because the mean of its divisors is an integer number (27699540).

Almost surely, 2^129264506 is an apocalyptic number.

129264506 is a deficient number, since it is larger than the sum of its proper divisors (92331814).

129264506 is an equidigital number, since it uses as much as digits as its factorization.

129264506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9233188.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 129264506 is about 11369.4549561534. The cubic root of 129264506 is about 505.6225449817.

The spelling of 129264506 in words is "one hundred twenty-nine million, two hundred sixty-four thousand, five hundred six".