1226663267 has 2 divisors, whose sum is σ = 1226663268. Its totient is φ = 1226663266.

The previous prime is 1226663233. The next prime is 1226663299. The reversal of 1226663267 is 7623666221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226663267 is a prime.

It is a super-2 number, since 2×1226663267² = 3009405541214226578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1226663467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613331633 + 613331634.

It is an arithmetic number, because the mean of its divisors is an integer number (613331634).

Almost surely, 2^1226663267 is an apocalyptic number.

1226663267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226663267 is an equidigital number, since it uses as much as digits as its factorization.

1226663267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 41.

The square root of 1226663267 is about 35023.7528971411. The cubic root of 1226663267 is about 1070.4715268267.

The spelling of 1226663267 in words is "one billion, two hundred twenty-six million, six hundred sixty-three thousand, two hundred sixty-seven".