27161339 has 2 divisors, whose sum is σ = 27161340. Its totient is φ = 27161338.

The previous prime is 27161327. The next prime is 27161353. The reversal of 27161339 is 93316172.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27161339 - 2¹² = 27157243 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27161389) 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, 13580669 + 13580670.

It is an arithmetic number, because the mean of its divisors is an integer number (13580670).

Almost surely, 2^27161339 is an apocalyptic number.

27161339 is a deficient number, since it is larger than the sum of its proper divisors (1).

27161339 is an equidigital number, since it uses as much as digits as its factorization.

27161339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 27161339 is about 5211.6541519944. The cubic root of 27161339 is about 300.5963655600.

The spelling of 27161339 in words is "twenty-seven million, one hundred sixty-one thousand, three hundred thirty-nine".