1265313814 has 4 divisors (see below), whose sum is σ = 1897970724. Its totient is φ = 632656906.

The previous prime is 1265313767. The next prime is 1265313821. The reversal of 1265313814 is 4183135621.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1265313814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316328452 + ... + 316328455.

It is an arithmetic number, because the mean of its divisors is an integer number (474492681).

Almost surely, 2^1265313814 is an apocalyptic number.

1265313814 is a deficient number, since it is larger than the sum of its proper divisors (632656910).

1265313814 is an equidigital number, since it uses as much as digits as its factorization.

1265313814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632656909.

The product of its digits is 17280, while the sum is 34.

The square root of 1265313814 is about 35571.2498234178. The cubic root of 1265313814 is about 1081.5985170563.

The spelling of 1265313814 in words is "one billion, two hundred sixty-five million, three hundred thirteen thousand, eight hundred fourteen".