1276452223 has 4 divisors (see below), whose sum is σ = 1282176448. Its totient is φ = 1270728000.

The previous prime is 1276452193. The next prime is 1276452253. The reversal of 1276452223 is 3222546721.

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

It is an interprime number because it is at equal distance from previous prime (1276452193) and next prime (1276452253).

It is a cyclic number.

It is not a de Polignac number, because 1276452223 - 2²⁵ = 1242897791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276452253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861778 + ... + 2862223.

It is an arithmetic number, because the mean of its divisors is an integer number (320544112).

Almost surely, 2^1276452223 is an apocalyptic number.

1276452223 is a deficient number, since it is larger than the sum of its proper divisors (5724225).

1276452223 is an equidigital number, since it uses as much as digits as its factorization.

1276452223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724224.

The product of its digits is 40320, while the sum is 34.

The square root of 1276452223 is about 35727.4715450170. The cubic root of 1276452223 is about 1084.7629779493.

Adding to 1276452223 its reverse (3222546721), we get a palindrome (4498998944).

The spelling of 1276452223 in words is "one billion, two hundred seventy-six million, four hundred fifty-two thousand, two hundred twenty-three".