1214623243 has 4 divisors (see below), whose sum is σ = 1220070208. Its totient is φ = 1209176280.

The previous prime is 1214623229. The next prime is 1214623271. The reversal of 1214623243 is 3423264121.

It is a happy number.

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 1214623243 - 2¹⁷ = 1214492171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214623213) 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, 2723148 + ... + 2723593.

It is an arithmetic number, because the mean of its divisors is an integer number (305017552).

Almost surely, 2^1214623243 is an apocalyptic number.

1214623243 is a deficient number, since it is larger than the sum of its proper divisors (5446965).

1214623243 is an equidigital number, since it uses as much as digits as its factorization.

1214623243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446964.

The product of its digits is 6912, while the sum is 28.

The square root of 1214623243 is about 34851.4453502290. The cubic root of 1214623243 is about 1066.9576849281.

Adding to 1214623243 its reverse (3423264121), we get a palindrome (4637887364).

The spelling of 1214623243 in words is "one billion, two hundred fourteen million, six hundred twenty-three thousand, two hundred forty-three".