27142229 has 2 divisors, whose sum is σ = 27142230. Its totient is φ = 27142228.

The previous prime is 27142189. The next prime is 27142237. The reversal of 27142229 is 92224172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23261329 + 3880900 = 4823^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 27142229 - 2⁸ = 27141973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27142259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13571114 + 13571115.

It is an arithmetic number, because the mean of its divisors is an integer number (13571115).

Almost surely, 2^27142229 is an apocalyptic number.

It is an amenable number.

27142229 is a deficient number, since it is larger than the sum of its proper divisors (1).

27142229 is an equidigital number, since it uses as much as digits as its factorization.

27142229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 27142229 is about 5209.8204383645. The cubic root of 27142229 is about 300.5258518018.

The spelling of 27142229 in words is "twenty-seven million, one hundred forty-two thousand, two hundred twenty-nine".