1264331 has 2 divisors, whose sum is σ = 1264332. Its totient is φ = 1264330.

The previous prime is 1264303. The next prime is 1264337. The reversal of 1264331 is 1334621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1264331 - 2⁶ = 1264267 is a prime.

It is a super-2 number, since 2×1264331² = 3197065755122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1264337) 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, 632165 + 632166.

It is an arithmetic number, because the mean of its divisors is an integer number (632166).

2^1264331 is an apocalyptic number.

1264331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264331 is an equidigital number, since it uses as much as digits as its factorization.

1264331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 1264331 is about 1124.4247418125. The cubic root of 1264331 is about 108.1318405910.

Adding to 1264331 its reverse (1334621), we get a palindrome (2598952).

The spelling of 1264331 in words is "one million, two hundred sixty-four thousand, three hundred thirty-one".