123055255 has 4 divisors (see below), whose sum is σ = 147666312. Its totient is φ = 98444200.

The previous prime is 123055249. The next prime is 123055277. The reversal of 123055255 is 552550321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123055255 - 2¹³ = 123047063 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 3 ways as a sum of consecutive naturals, for example, 12305521 + ... + 12305530.

It is an arithmetic number, because the mean of its divisors is an integer number (36916578).

Almost surely, 2^123055255 is an apocalyptic number.

123055255 is a deficient number, since it is larger than the sum of its proper divisors (24611057).

123055255 is an equidigital number, since it uses as much as digits as its factorization.

123055255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24611056.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 123055255 is about 11093.0273144890. The cubic root of 123055255 is about 497.3934419898.

The spelling of 123055255 in words is "one hundred twenty-three million, fifty-five thousand, two hundred fifty-five".