27145201 has 2 divisors, whose sum is σ = 27145202. Its totient is φ = 27145200.

The previous prime is 27145187. The next prime is 27145211. The reversal of 27145201 is 10254172.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27029601 + 115600 = 5199^2 + 340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27145201 is a prime.

It is not a weakly prime, because it can be changed into another prime (27145211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572600 + 13572601.

It is an arithmetic number, because the mean of its divisors is an integer number (13572601).

Almost surely, 2^27145201 is an apocalyptic number.

It is an amenable number.

27145201 is a deficient number, since it is larger than the sum of its proper divisors (1).

27145201 is an equidigital number, since it uses as much as digits as its factorization.

27145201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 27145201 is about 5210.1056611167. The cubic root of 27145201 is about 300.5368203217.

Adding to 27145201 its reverse (10254172), we get a palindrome (37399373).

The spelling of 27145201 in words is "twenty-seven million, one hundred forty-five thousand, two hundred one".