1405234823 has 2 divisors, whose sum is σ = 1405234824. Its totient is φ = 1405234822.

The previous prime is 1405234799. The next prime is 1405234837. The reversal of 1405234823 is 3284325041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1405234823 - 2¹⁰ = 1405233799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1405234823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405234843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702617411 + 702617412.

It is an arithmetic number, because the mean of its divisors is an integer number (702617412).

Almost surely, 2^1405234823 is an apocalyptic number.

1405234823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405234823 is an equidigital number, since it uses as much as digits as its factorization.

1405234823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1405234823 is about 37486.4618629179. The cubic root of 1405234823 is about 1120.0815265378.

Adding to 1405234823 its reverse (3284325041), we get a palindrome (4689559864).

The spelling of 1405234823 in words is "one billion, four hundred five million, two hundred thirty-four thousand, eight hundred twenty-three".