27078151 has 2 divisors, whose sum is σ = 27078152. Its totient is φ = 27078150.

The previous prime is 27078137. The next prime is 27078167. The reversal of 27078151 is 15187072.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27078151 - 2²¹ = 24980999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27078551) 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, 13539075 + 13539076.

It is an arithmetic number, because the mean of its divisors is an integer number (13539076).

Almost surely, 2^27078151 is an apocalyptic number.

27078151 is a deficient number, since it is larger than the sum of its proper divisors (1).

27078151 is an equidigital number, since it uses as much as digits as its factorization.

27078151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 27078151 is about 5203.6670723635. The cubic root of 27078151 is about 300.2891693289.

The spelling of 27078151 in words is "twenty-seven million, seventy-eight thousand, one hundred fifty-one".