12945739 has 2 divisors, whose sum is σ = 12945740. Its totient is φ = 12945738.

The previous prime is 12945731. The next prime is 12945767. The reversal of 12945739 is 93754921.

12945739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12945739 - 2³ = 12945731 is a prime.

It is a super-2 number, since 2×12945739² = 335184316512242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12945731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472869 + 6472870.

It is an arithmetic number, because the mean of its divisors is an integer number (6472870).

Almost surely, 2^12945739 is an apocalyptic number.

12945739 is a deficient number, since it is larger than the sum of its proper divisors (1).

12945739 is an equidigital number, since it uses as much as digits as its factorization.

12945739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 12945739 is about 3598.0187603735. The cubic root of 12945739 is about 234.8058695533.

The spelling of 12945739 in words is "twelve million, nine hundred forty-five thousand, seven hundred thirty-nine".