27144959 has 2 divisors, whose sum is σ = 27144960. Its totient is φ = 27144958.

The previous prime is 27144947. The next prime is 27144961. The reversal of 27144959 is 95944172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27144959 - 2⁸ = 27144703 is a prime.

It is a super-2 number, since 2×27144959² = 1473697598223362, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 27144961, 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 (27144919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572479 + 13572480.

It is an arithmetic number, because the mean of its divisors is an integer number (13572480).

Almost surely, 2^27144959 is an apocalyptic number.

27144959 is a deficient number, since it is larger than the sum of its proper divisors (1).

27144959 is an equidigital number, since it uses as much as digits as its factorization.

27144959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 27144959 is about 5210.0824369678. The cubic root of 27144959 is about 300.5359272218.

The spelling of 27144959 in words is "twenty-seven million, one hundred forty-four thousand, nine hundred fifty-nine".