123256475 has 12 divisors (see below), whose sum is σ = 153688080. Its totient is φ = 98056800.

The previous prime is 123256457. The next prime is 123256489. The reversal of 123256475 is 574652321.

It is not a de Polignac number, because 123256475 - 2²² = 119062171 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9095 + ... + 18144.

It is an arithmetic number, because the mean of its divisors is an integer number (12807340).

Almost surely, 2^123256475 is an apocalyptic number.

123256475 is a deficient number, since it is larger than the sum of its proper divisors (30431605).

123256475 is a wasteful number, since it uses less digits than its factorization.

123256475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27430 (or 27425 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 123256475 is about 11102.0932710908. The cubic root of 123256475 is about 497.6644069982.

The spelling of 123256475 in words is "one hundred twenty-three million, two hundred fifty-six thousand, four hundred seventy-five".