1264849291 has 2 divisors, whose sum is σ = 1264849292. Its totient is φ = 1264849290.

The previous prime is 1264849277. The next prime is 1264849393. The reversal of 1264849291 is 1929484621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1264849291 - 2¹³ = 1264841099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1264849231) 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, 632424645 + 632424646.

It is an arithmetic number, because the mean of its divisors is an integer number (632424646).

Almost surely, 2^1264849291 is an apocalyptic number.

1264849291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264849291 is an equidigital number, since it uses as much as digits as its factorization.

1264849291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 1264849291 is about 35564.7197514616. The cubic root of 1264849291 is about 1081.4661417571.

The spelling of 1264849291 in words is "one billion, two hundred sixty-four million, eight hundred forty-nine thousand, two hundred ninety-one".