1265867327 has 2 divisors, whose sum is σ = 1265867328. Its totient is φ = 1265867326.

The previous prime is 1265867269. The next prime is 1265867417. The reversal of 1265867327 is 7237685621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1265867327 - 2⁶ = 1265867263 is a prime.

It is a super-2 number, since 2×1265867327² = 3204840179132249858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265867227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632933663 + 632933664.

It is an arithmetic number, because the mean of its divisors is an integer number (632933664).

Almost surely, 2^1265867327 is an apocalyptic number.

1265867327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265867327 is an equidigital number, since it uses as much as digits as its factorization.

1265867327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 1265867327 is about 35579.0293150333. The cubic root of 1265867327 is about 1081.7562095742.

The spelling of 1265867327 in words is "one billion, two hundred sixty-five million, eight hundred sixty-seven thousand, three hundred twenty-seven".