41278613 has 2 divisors, whose sum is σ = 41278614. Its totient is φ = 41278612.

The previous prime is 41278579. The next prime is 41278631. The reversal of 41278613 is 31687214.

Together with next prime (41278631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22676644 + 18601969 = 4762^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 41278613 - 2²⁰ = 40230037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41278613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41278693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20639306 + 20639307.

It is an arithmetic number, because the mean of its divisors is an integer number (20639307).

Almost surely, 2^41278613 is an apocalyptic number.

It is an amenable number.

41278613 is a deficient number, since it is larger than the sum of its proper divisors (1).

41278613 is an equidigital number, since it uses as much as digits as its factorization.

41278613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 41278613 is about 6424.8434222166. The cubic root of 41278613 is about 345.6010331125.

The spelling of 41278613 in words is "forty-one million, two hundred seventy-eight thousand, six hundred thirteen".