123824255 has 4 divisors (see below), whose sum is σ = 148589112. Its totient is φ = 99059400.

The previous prime is 123824251. The next prime is 123824333. The reversal of 123824255 is 552428321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552428321 = 233 ⋅2370937.

It is not a de Polignac number, because 123824255 - 2² = 123824251 is a prime.

It is a super-2 number, since 2×123824255² = 30664892252610050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123824251) 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, 12382421 + ... + 12382430.

It is an arithmetic number, because the mean of its divisors is an integer number (37147278).

Almost surely, 2^123824255 is an apocalyptic number.

123824255 is a deficient number, since it is larger than the sum of its proper divisors (24764857).

123824255 is an equidigital number, since it uses as much as digits as its factorization.

123824255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24764856.

The product of its digits is 19200, while the sum is 32.

The square root of 123824255 is about 11127.6347441853. The cubic root of 123824255 is about 498.4273990380.

The spelling of 123824255 in words is "one hundred twenty-three million, eight hundred twenty-four thousand, two hundred fifty-five".