404123 has 2 divisors, whose sum is σ = 404124. Its totient is φ = 404122.

The previous prime is 404119. The next prime is 404161. The reversal of 404123 is 321404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404123 - 2² = 404119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404098 and 404107.

It is not a weakly prime, because it can be changed into another prime (404113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202061 + 202062.

It is an arithmetic number, because the mean of its divisors is an integer number (202062).

2⁴⁰⁴¹²³ is an apocalyptic number.

404123 is a deficient number, since it is larger than the sum of its proper divisors (1).

404123 is an equidigital number, since it uses as much as digits as its factorization.

404123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 404123 is about 635.7066933736. The cubic root of 404123 is about 73.9329194879.

Adding to 404123 its reverse (321404), we get a palindrome (725527).

The spelling of 404123 in words is "four hundred four thousand, one hundred twenty-three", and thus it is an iban number.