1264325047 has 4 divisors (see below), whose sum is σ = 1272810600. Its totient is φ = 1255839496.

The previous prime is 1264325009. The next prime is 1264325053. The reversal of 1264325047 is 7405234621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1264325047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264326047) 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, 4242553 + ... + 4242850.

It is an arithmetic number, because the mean of its divisors is an integer number (318202650).

Almost surely, 2^1264325047 is an apocalyptic number.

1264325047 is a deficient number, since it is larger than the sum of its proper divisors (8485553).

1264325047 is an equidigital number, since it uses as much as digits as its factorization.

1264325047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8485552.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 1264325047 is about 35557.3487059989. The cubic root of 1264325047 is about 1081.3167088071.

Adding to 1264325047 its reverse (7405234621), we get a palindrome (8669559668).

The spelling of 1264325047 in words is "one billion, two hundred sixty-four million, three hundred twenty-five thousand, forty-seven".