27640141 has 2 divisors, whose sum is σ = 27640142. Its totient is φ = 27640140.

The previous prime is 27640057. The next prime is 27640157. The reversal of 27640141 is 14104672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17464041 + 10176100 = 4179^2 + 3190^2 .

It is a cyclic number.

It is not a de Polignac number, because 27640141 - 2¹⁹ = 27115853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27640241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13820070 + 13820071.

It is an arithmetic number, because the mean of its divisors is an integer number (13820071).

Almost surely, 2^27640141 is an apocalyptic number.

It is an amenable number.

27640141 is a deficient number, since it is larger than the sum of its proper divisors (1).

27640141 is an equidigital number, since it uses as much as digits as its factorization.

27640141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 27640141 is about 5257.3891809528. The cubic root of 27640141 is about 302.3523984508.

The spelling of 27640141 in words is "twenty-seven million, six hundred forty thousand, one hundred forty-one".