1265316301 has 4 divisors (see below), whose sum is σ = 1286762400. Its totient is φ = 1243870204.

The previous prime is 1265316289. The next prime is 1265316359. The reversal of 1265316301 is 1036135621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1036135621 = 6833 ⋅151637.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1265316301 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 1265316301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265316901) 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, 10722961 + ... + 10723078.

It is an arithmetic number, because the mean of its divisors is an integer number (321690600).

Almost surely, 2^1265316301 is an apocalyptic number.

It is an amenable number.

1265316301 is a deficient number, since it is larger than the sum of its proper divisors (21446099).

1265316301 is an equidigital number, since it uses as much as digits as its factorization.

1265316301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21446098.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1265316301 is about 35571.2847814076. The cubic root of 1265316301 is about 1081.5992256905.

The spelling of 1265316301 in words is "one billion, two hundred sixty-five million, three hundred sixteen thousand, three hundred one".