1223430542 has 8 divisors (see below), whose sum is σ = 1854065136. Its totient is φ = 605408832.

The previous prime is 1223430521. The next prime is 1223430589. The reversal of 1223430542 is 2450343221.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3152978 + ... + 3153365.

It is an arithmetic number, because the mean of its divisors is an integer number (231758142).

Almost surely, 2^1223430542 is an apocalyptic number.

1223430542 is a deficient number, since it is larger than the sum of its proper divisors (630634594).

1223430542 is an equidigital number, since it uses as much as digits as its factorization.

1223430542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306442.

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

The square root of 1223430542 is about 34977.5719854881. The cubic root of 1223430542 is about 1069.5303327855.

Adding to 1223430542 its reverse (2450343221), we get a palindrome (3673773763).

The spelling of 1223430542 in words is "one billion, two hundred twenty-three million, four hundred thirty thousand, five hundred forty-two".