1264063459 has 4 divisors (see below), whose sum is σ = 1264135960. Its totient is φ = 1263990960.

The previous prime is 1264063457. The next prime is 1264063469. The reversal of 1264063459 is 9543604621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1264063459 - 2¹ = 1264063457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264063457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7519 + ... + 50839.

It is an arithmetic number, because the mean of its divisors is an integer number (316033990).

Almost surely, 2^1264063459 is an apocalyptic number.

1264063459 is a deficient number, since it is larger than the sum of its proper divisors (72501).

1264063459 is an equidigital number, since it uses as much as digits as its factorization.

1264063459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72500.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 1264063459 is about 35553.6701199750. The cubic root of 1264063459 is about 1081.2421290973.

The spelling of 1264063459 in words is "one billion, two hundred sixty-four million, sixty-three thousand, four hundred fifty-nine".