1405234223 has 4 divisors (see below), whose sum is σ = 1405494000. Its totient is φ = 1404974448.

The previous prime is 1405234217. The next prime is 1405234231. The reversal of 1405234223 is 3224325041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1405234223 - 2²⁶ = 1338125359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1405234192 and 1405234201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405234823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121598 + ... + 132651.

It is an arithmetic number, because the mean of its divisors is an integer number (351373500).

Almost surely, 2^1405234223 is an apocalyptic number.

1405234223 is a deficient number, since it is larger than the sum of its proper divisors (259777).

1405234223 is an equidigital number, since it uses as much as digits as its factorization.

1405234223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259776.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1405234223 is about 37486.4538600279. The cubic root of 1405234223 is about 1120.0813671222.

Adding to 1405234223 its reverse (3224325041), we get a palindrome (4629559264).

The spelling of 1405234223 in words is "one billion, four hundred five million, two hundred thirty-four thousand, two hundred twenty-three".