1226272647 has 8 divisors (see below), whose sum is σ = 1644064240. Its totient is φ = 812998080.

The previous prime is 1226272637. The next prime is 1226272657. The reversal of 1226272647 is 7462726221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1226272637) and next prime (1226272657).

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

It is not a de Polignac number, because 1226272647 - 2⁶ = 1226272583 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 (1226272637) 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 7 ways as a sum of consecutive naturals, for example, 1128622 + ... + 1129707.

It is an arithmetic number, because the mean of its divisors is an integer number (205508030).

Almost surely, 2^1226272647 is an apocalyptic number.

1226272647 is a deficient number, since it is larger than the sum of its proper divisors (417791593).

1226272647 is a wasteful number, since it uses less digits than its factorization.

1226272647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258513.

The product of its digits is 112896, while the sum is 39.

The square root of 1226272647 is about 35018.1759519253. The cubic root of 1226272647 is about 1070.3578873865.

Adding to 1226272647 its reverse (7462726221), we get a palindrome (8688998868).

The spelling of 1226272647 in words is "one billion, two hundred twenty-six million, two hundred seventy-two thousand, six hundred forty-seven".