255100123 has 4 divisors (see below), whose sum is σ = 261032728. Its totient is φ = 249167520.

The previous prime is 255100117. The next prime is 255100169. The reversal of 255100123 is 321001552.

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

It is a cyclic number.

It is not a de Polignac number, because 255100123 - 2¹⁷ = 254969051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255100123.

It is not an unprimeable number, because it can be changed into a prime (255101123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2966238 + ... + 2966323.

It is an arithmetic number, because the mean of its divisors is an integer number (65258182).

Almost surely, 2^255100123 is an apocalyptic number.

255100123 is a deficient number, since it is larger than the sum of its proper divisors (5932605).

255100123 is an equidigital number, since it uses as much as digits as its factorization.

255100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932604.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 255100123 is about 15971.8540877382. The cubic root of 255100123 is about 634.2155547835.

Adding to 255100123 its reverse (321001552), we get a palindrome (576101675).

The spelling of 255100123 in words is "two hundred fifty-five million, one hundred thousand, one hundred twenty-three".