123255017 has 8 divisors (see below), whose sum is σ = 128115840. Its totient is φ = 118434960.

The previous prime is 123255007. The next prime is 123255023. The reversal of 123255017 is 710552321.

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 123255017 - 2⁴ = 123255001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123255007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3953 + ... + 16190.

It is an arithmetic number, because the mean of its divisors is an integer number (16014480).

Almost surely, 2^123255017 is an apocalyptic number.

It is an amenable number.

123255017 is a deficient number, since it is larger than the sum of its proper divisors (4860823).

123255017 is a wasteful number, since it uses less digits than its factorization.

123255017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20383.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 123255017 is about 11102.0276076039. The cubic root of 123255017 is about 497.6624447008.

The spelling of 123255017 in words is "one hundred twenty-three million, two hundred fifty-five thousand, seventeen".