1226831 has 2 divisors, whose sum is σ = 1226832. Its totient is φ = 1226830.

The previous prime is 1226821. The next prime is 1226851. The reversal of 1226831 is 1386221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226831 - 2⁶ = 1226767 is a prime.

It is a super-2 number, since 2×1226831² = 3010228605122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1226797 and 1226806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613415 + 613416.

It is an arithmetic number, because the mean of its divisors is an integer number (613416).

2^1226831 is an apocalyptic number.

1226831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226831 is an equidigital number, since it uses as much as digits as its factorization.

1226831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 1226831 is about 1107.6240336865. The cubic root of 1226831 is about 107.0520316423.

The spelling of 1226831 in words is "one million, two hundred twenty-six thousand, eight hundred thirty-one".