1264427743 has 2 divisors, whose sum is σ = 1264427744. Its totient is φ = 1264427742.

The previous prime is 1264427701. The next prime is 1264427803. The reversal of 1264427743 is 3477244621.

It is a weak prime.

It is an emirp because it is prime and its reverse (3477244621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1264427743 - 2¹³ = 1264419551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1264427696 and 1264427705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264427443) 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, 632213871 + 632213872.

It is an arithmetic number, because the mean of its divisors is an integer number (632213872).

Almost surely, 2^1264427743 is an apocalyptic number.

1264427743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264427743 is an equidigital number, since it uses as much as digits as its factorization.

1264427743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 40.

The square root of 1264427743 is about 35558.7927663468. The cubic root of 1264427743 is about 1081.3459850058.

The spelling of 1264427743 in words is "one billion, two hundred sixty-four million, four hundred twenty-seven thousand, seven hundred forty-three".