1226862823 has 2 divisors, whose sum is σ = 1226862824. Its totient is φ = 1226862822.

The previous prime is 1226862787. The next prime is 1226862827. The reversal of 1226862823 is 3282686221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226862823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226862827) 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, 613431411 + 613431412.

It is an arithmetic number, because the mean of its divisors is an integer number (613431412).

Almost surely, 2^1226862823 is an apocalyptic number.

1226862823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226862823 is an equidigital number, since it uses as much as digits as its factorization.

1226862823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 40.

The square root of 1226862823 is about 35026.6016478904. The cubic root of 1226862823 is about 1070.5295724857.

The spelling of 1226862823 in words is "one billion, two hundred twenty-six million, eight hundred sixty-two thousand, eight hundred twenty-three".