129872255 has 8 divisors (see below), whose sum is σ = 159471312. Its totient is φ = 101481408.

The previous prime is 129872227. The next prime is 129872261. The reversal of 129872255 is 552278921.

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

It is a cyclic number.

It is not a de Polignac number, because 129872255 - 2¹⁸ = 129610111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301814 + ... + 302243.

It is an arithmetic number, because the mean of its divisors is an integer number (19933914).

Almost surely, 2^129872255 is an apocalyptic number.

129872255 is a deficient number, since it is larger than the sum of its proper divisors (29599057).

129872255 is an equidigital number, since it uses as much as digits as its factorization.

129872255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604105.

The product of its digits is 100800, while the sum is 41.

The square root of 129872255 is about 11396.1508852770. The cubic root of 129872255 is about 506.4137166987.

The spelling of 129872255 in words is "one hundred twenty-nine million, eight hundred seventy-two thousand, two hundred fifty-five".