1268574479 has 4 divisors (see below), whose sum is σ = 1268746584. Its totient is φ = 1268402376.

The previous prime is 1268574457. The next prime is 1268574487. The reversal of 1268574479 is 9744758621.

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 1268574479 - 2¹² = 1268570383 is a prime.

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 1268574479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268514479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74477 + ... + 89910.

It is an arithmetic number, because the mean of its divisors is an integer number (317186646).

Almost surely, 2^1268574479 is an apocalyptic number.

1268574479 is a deficient number, since it is larger than the sum of its proper divisors (172105).

1268574479 is an equidigital number, since it uses as much as digits as its factorization.

1268574479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172104.

The product of its digits is 3386880, while the sum is 53.

The square root of 1268574479 is about 35617.0532048905. The cubic root of 1268574479 is about 1082.5267993799.

The spelling of 1268574479 in words is "one billion, two hundred sixty-eight million, five hundred seventy-four thousand, four hundred seventy-nine".