1268835395 has 4 divisors (see below), whose sum is σ = 1522602480. Its totient is φ = 1015068312.

The previous prime is 1268835361. The next prime is 1268835397. The reversal of 1268835395 is 5935388621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5935388621 = 6733 ⋅881537.

It is a cyclic number.

It is not a de Polignac number, because 1268835395 - 2¹² = 1268831299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268835397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126883535 + ... + 126883544.

It is an arithmetic number, because the mean of its divisors is an integer number (380650620).

Almost surely, 2^1268835395 is an apocalyptic number.

1268835395 is a deficient number, since it is larger than the sum of its proper divisors (253767085).

1268835395 is an equidigital number, since it uses as much as digits as its factorization.

1268835395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253767084.

The product of its digits is 1555200, while the sum is 50.

The square root of 1268835395 is about 35620.7158125718. The cubic root of 1268835395 is about 1082.6010110784.

The spelling of 1268835395 in words is "one billion, two hundred sixty-eight million, eight hundred thirty-five thousand, three hundred ninety-five".