123261456 has 40 divisors (see below), whose sum is σ = 328701184. Its totient is φ = 39761280.

The previous prime is 123261431. The next prime is 123261497. The reversal of 123261456 is 654162321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39931 + ... + 42906.

Almost surely, 2^123261456 is an apocalyptic number.

123261456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123261456 is an abundant number, since it is smaller than the sum of its proper divisors (205439728).

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

123261456 is a wasteful number, since it uses less digits than its factorization.

123261456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82879 (or 82873 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 123261456 is about 11102.3175958896. The cubic root of 123261456 is about 497.6711107245.

The spelling of 123261456 in words is "one hundred twenty-three million, two hundred sixty-one thousand, four hundred fifty-six".