123281075 has 12 divisors (see below), whose sum is σ = 153064608. Its totient is φ = 98498400.

The previous prime is 123281029. The next prime is 123281089. The reversal of 123281075 is 570182321.

It is not a de Polignac number, because 123281075 - 2⁸ = 123280819 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20069 + ... + 25481.

It is an arithmetic number, because the mean of its divisors is an integer number (12755384).

Almost surely, 2^123281075 is an apocalyptic number.

123281075 is a deficient number, since it is larger than the sum of its proper divisors (29783533).

123281075 is an equidigital number, since it uses as much as digits as its factorization.

123281075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6334 (or 6329 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 123281075 is about 11103.2011149938. The cubic root of 123281075 is about 497.6975133861.

The spelling of 123281075 in words is "one hundred twenty-three million, two hundred eighty-one thousand, seventy-five".