1264034823 has 4 divisors (see below), whose sum is σ = 1685379768. Its totient is φ = 842689880.

The previous prime is 1264034791. The next prime is 1264034833. The reversal of 1264034823 is 3284304621.

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

It is a cyclic number.

It is not a de Polignac number, because 1264034823 - 2⁵ = 1264034791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264034833) 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, 210672468 + ... + 210672473.

It is an arithmetic number, because the mean of its divisors is an integer number (421344942).

Almost surely, 2^1264034823 is an apocalyptic number.

1264034823 is a deficient number, since it is larger than the sum of its proper divisors (421344945).

1264034823 is an equidigital number, since it uses as much as digits as its factorization.

1264034823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421344944.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 1264034823 is about 35553.2674025890. The cubic root of 1264034823 is about 1081.2339642426.

The spelling of 1264034823 in words is "one billion, two hundred sixty-four million, thirty-four thousand, eight hundred twenty-three".