123193828 has 12 divisors (see below), whose sum is σ = 215724460. Its totient is φ = 61558272.

The previous prime is 123193817. The next prime is 123193867. The reversal of 123193828 is 828391321.

It can be written as a sum of positive squares in 2 ways, for example, as 2896804 + 120297024 = 1702^2 + 10968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773 + ... + 15796.

Almost surely, 2^123193828 is an apocalyptic number.

It is an amenable number.

123193828 is a deficient number, since it is larger than the sum of its proper divisors (92530632).

123193828 is a wasteful number, since it uses less digits than its factorization.

123193828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19326 (or 19324 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 123193828 is about 11099.2715076261. The cubic root of 123193828 is about 497.5800775118.

It can be divided in two parts, 1231 and 93828, that added together give a palindrome (95059).

The spelling of 123193828 in words is "one hundred twenty-three million, one hundred ninety-three thousand, eight hundred twenty-eight".