1226471 has 2 divisors, whose sum is σ = 1226472. Its totient is φ = 1226470.

The previous prime is 1226461. The next prime is 1226479. The reversal of 1226471 is 1746221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226471 is a prime.

It is a super-3 number, since 3×1226471³ = 5534687515271055333, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is equal to p₉₄₈₀₂ and since 1226471 and 94802 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613235 + 613236.

It is an arithmetic number, because the mean of its divisors is an integer number (613236).

2^1226471 is an apocalyptic number.

1226471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226471 is an equidigital number, since it uses as much as digits as its factorization.

1226471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 1226471 is about 1107.4615117466. The cubic root of 1226471 is about 107.0415595394.

The spelling of 1226471 in words is "one million, two hundred twenty-six thousand, four hundred seventy-one".