123355256 has 16 divisors (see below), whose sum is σ = 241347600. Its totient is φ = 58995904.

The previous prime is 123355229. The next prime is 123355259. The reversal of 123355256 is 652553321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123355259) 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, 335021 + ... + 335388.

It is an arithmetic number, because the mean of its divisors is an integer number (15084225).

Almost surely, 2^123355256 is an apocalyptic number.

It is an amenable number.

123355256 is a deficient number, since it is larger than the sum of its proper divisors (117992344).

123355256 is a wasteful number, since it uses less digits than its factorization.

123355256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670438 (or 670434 counting only the distinct ones).

The product of its digits is 27000, while the sum is 32.

The square root of 123355256 is about 11106.5411357452. The cubic root of 123355256 is about 497.7973186390.

The spelling of 123355256 in words is "one hundred twenty-three million, three hundred fifty-five thousand, two hundred fifty-six".