123263856 has 50 divisors (see below), whose sum is σ = 356765112. Its totient is φ = 41087520.

The previous prime is 123263839. The next prime is 123263857. The reversal of 123263856 is 658362321.

It is a happy number.

123263856 is a `hidden beast` number, since 12 + 3 + 2 + 638 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 123263856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123263857) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 46260 + ... + 48851.

Almost surely, 2^123263856 is an apocalyptic number.

123263856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123263856 is an abundant number, since it is smaller than the sum of its proper divisors (233501256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123263856 is an equidigital number, since it uses as much as digits as its factorization.

123263856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95131 (or 95116 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 123263856 is about 11102.4256809042. The cubic root of 123263856 is about 497.6743407229.

It can be divided in two parts, 12326385 and 6, that added together give a cube (12326391 = 231³).

The spelling of 123263856 in words is "one hundred twenty-three million, two hundred sixty-three thousand, eight hundred fifty-six".