40127279 has 2 divisors, whose sum is σ = 40127280. Its totient is φ = 40127278.

The previous prime is 40127239. The next prime is 40127281. The reversal of 40127279 is 97272104.

40127279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40127279 - 2¹² = 40123183 is a prime.

It is a super-2 number, since 2×40127279² = 3220397039887682, which contains 22 as substring.

Together with 40127281, 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 (40127239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20063639 + 20063640.

It is an arithmetic number, because the mean of its divisors is an integer number (20063640).

Almost surely, 2^40127279 is an apocalyptic number.

40127279 is a deficient number, since it is larger than the sum of its proper divisors (1).

40127279 is an equidigital number, since it uses as much as digits as its factorization.

40127279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 40127279 is about 6334.6096170167. The cubic root of 40127279 is about 342.3575453183.

The spelling of 40127279 in words is "forty million, one hundred twenty-seven thousand, two hundred seventy-nine".