27143161 has 2 divisors, whose sum is σ = 27143162. Its totient is φ = 27143160.

The previous prime is 27143119. The next prime is 27143173. The reversal of 27143161 is 16134172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23222761 + 3920400 = 4819^2 + 1980^2 .

It is a cyclic number.

It is not a de Polignac number, because 27143161 - 2⁹ = 27142649 is a prime.

It is not a weakly prime, because it can be changed into another prime (27143461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13571580 + 13571581.

It is an arithmetic number, because the mean of its divisors is an integer number (13571581).

Almost surely, 2^27143161 is an apocalyptic number.

It is an amenable number.

27143161 is a deficient number, since it is larger than the sum of its proper divisors (1).

27143161 is an equidigital number, since it uses as much as digits as its factorization.

27143161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 27143161 is about 5209.9098840575. The cubic root of 27143161 is about 300.5292915449.

The spelling of 27143161 in words is "twenty-seven million, one hundred forty-three thousand, one hundred sixty-one".