1264090927 has 4 divisors (see below), whose sum is σ = 1379008296. Its totient is φ = 1149173560.

The previous prime is 1264090921. The next prime is 1264090931. The reversal of 1264090927 is 7290904621.

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-1264090927 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264090927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264090921) 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 in 3 ways as a sum of consecutive naturals, for example, 57458668 + ... + 57458689.

It is an arithmetic number, because the mean of its divisors is an integer number (344752074).

Almost surely, 2^1264090927 is an apocalyptic number.

1264090927 is a deficient number, since it is larger than the sum of its proper divisors (114917369).

1264090927 is a wasteful number, since it uses less digits than its factorization.

1264090927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114917368.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1264090927 is about 35554.0564071106. The cubic root of 1264090927 is about 1081.2499608095.

The spelling of 1264090927 in words is "one billion, two hundred sixty-four million, ninety thousand, nine hundred twenty-seven".