123835393 has 12 divisors (see below), whose sum is σ = 137477844. Its totient is φ = 111452000.

The previous prime is 123835319. The next prime is 123835403. The reversal of 123835393 is 393538321.

It can be written as a sum of positive squares in 2 ways, for example, as 110817729 + 13017664 = 10527^2 + 3608^2 .

It is a de Polignac number, because none of the positive numbers 2^k-123835393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123835093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7155 + ... + 17287.

It is an arithmetic number, because the mean of its divisors is an integer number (11456487).

Almost surely, 2^123835393 is an apocalyptic number.

It is an amenable number.

123835393 is a deficient number, since it is larger than the sum of its proper divisors (13642451).

123835393 is a wasteful number, since it uses less digits than its factorization.

123835393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256 (or 10245 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 123835393 is about 11128.1351986755. The cubic root of 123835393 is about 498.4423431158.

The spelling of 123835393 in words is "one hundred twenty-three million, eight hundred thirty-five thousand, three hundred ninety-three".