404123133 has 32 divisors (see below), whose sum is σ = 599187456. Its totient is φ = 240973568.

The previous prime is 404123131. The next prime is 404123147. The reversal of 404123133 is 331321404.

It is a cyclic number.

It is not a de Polignac number, because 404123133 - 2¹ = 404123131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404123131) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 194860 + ... + 196922.

It is an arithmetic number, because the mean of its divisors is an integer number (18724608).

Almost surely, 2^404123133 is an apocalyptic number.

It is an amenable number.

404123133 is a deficient number, since it is larger than the sum of its proper divisors (195064323).

404123133 is a wasteful number, since it uses less digits than its factorization.

404123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 404123133 is about 20102.8140567434. The cubic root of 404123133 is about 739.3292759854.

Adding to 404123133 its reverse (331321404), we get a palindrome (735444537).

The spelling of 404123133 in words is "four hundred four million, one hundred twenty-three thousand, one hundred thirty-three".