1223546343 has 8 divisors (see below), whose sum is σ = 1633896048. Its totient is φ = 814447104.

The previous prime is 1223546339. The next prime is 1223546353. The reversal of 1223546343 is 3436453221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223546343 - 2² = 1223546339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223546353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310330 + ... + 314247.

It is an arithmetic number, because the mean of its divisors is an integer number (204237006).

Almost surely, 2^1223546343 is an apocalyptic number.

1223546343 is a deficient number, since it is larger than the sum of its proper divisors (410349705).

1223546343 is an equidigital number, since it uses as much as digits as its factorization.

1223546343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625233.

The product of its digits is 51840, while the sum is 33.

The square root of 1223546343 is about 34979.2273070747. The cubic root of 1223546343 is about 1069.5640763643.

Adding to 1223546343 its reverse (3436453221), we get a palindrome (4659999564).

The spelling of 1223546343 in words is "one billion, two hundred twenty-three million, five hundred forty-six thousand, three hundred forty-three".