12965791 has 2 divisors, whose sum is σ = 12965792. Its totient is φ = 12965790.

The previous prime is 12965789. The next prime is 12965801. The reversal of 12965791 is 19756921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12965791 - 2¹ = 12965789 is a prime.

It is a super-2 number, since 2×12965791² = 336223472511362, which contains 22 as substring.

Together with 12965789, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12965731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6482895 + 6482896.

It is an arithmetic number, because the mean of its divisors is an integer number (6482896).

Almost surely, 2^12965791 is an apocalyptic number.

12965791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12965791 is an equidigital number, since it uses as much as digits as its factorization.

12965791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 12965791 is about 3600.8042157274. The cubic root of 12965791 is about 234.9270393692.

The spelling of 12965791 in words is "twelve million, nine hundred sixty-five thousand, seven hundred ninety-one".