1265313407 has 2 divisors, whose sum is σ = 1265313408. Its totient is φ = 1265313406.

The previous prime is 1265313377. The next prime is 1265313419. The reversal of 1265313407 is 7043135621.

It is a strong prime.

It is an emirp because it is prime and its reverse (7043135621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1265313407 - 2²⁸ = 996877951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265310407) 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 as a sum of consecutive naturals, namely, 632656703 + 632656704.

It is an arithmetic number, because the mean of its divisors is an integer number (632656704).

Almost surely, 2^1265313407 is an apocalyptic number.

1265313407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265313407 is an equidigital number, since it uses as much as digits as its factorization.

1265313407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1265313407 is about 35571.2441025050. The cubic root of 1265313407 is about 1081.5984010875.

The spelling of 1265313407 in words is "one billion, two hundred sixty-five million, three hundred thirteen thousand, four hundred seven".