1223414251 has 4 divisors (see below), whose sum is σ = 1223493712. Its totient is φ = 1223334792.

The previous prime is 1223414249. The next prime is 1223414279. The reversal of 1223414251 is 1524143221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1223414251 - 2¹ = 1223414249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223414651) 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, 8400 + ... + 50173.

It is an arithmetic number, because the mean of its divisors is an integer number (305873428).

Almost surely, 2^1223414251 is an apocalyptic number.

1223414251 is a deficient number, since it is larger than the sum of its proper divisors (79461).

1223414251 is an equidigital number, since it uses as much as digits as its factorization.

1223414251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79460.

The product of its digits is 1920, while the sum is 25.

The square root of 1223414251 is about 34977.3391069132. The cubic root of 1223414251 is about 1069.5255855344.

Adding to 1223414251 its reverse (1524143221), we get a palindrome (2747557472).

The spelling of 1223414251 in words is "one billion, two hundred twenty-three million, four hundred fourteen thousand, two hundred fifty-one".