27097121 has 2 divisors, whose sum is σ = 27097122. Its totient is φ = 27097120.

The previous prime is 27097117. The next prime is 27097123. The reversal of 27097121 is 12179072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27040000 + 57121 = 5200^2 + 239^2 .

It is a cyclic number.

It is not a de Polignac number, because 27097121 - 2² = 27097117 is a prime.

Together with 27097123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27097123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13548560 + 13548561.

It is an arithmetic number, because the mean of its divisors is an integer number (13548561).

Almost surely, 2^27097121 is an apocalyptic number.

It is an amenable number.

27097121 is a deficient number, since it is larger than the sum of its proper divisors (1).

27097121 is an equidigital number, since it uses as much as digits as its factorization.

27097121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 27097121 is about 5205.4895062808. The cubic root of 27097121 is about 300.3592769692.

The spelling of 27097121 in words is "twenty-seven million, ninety-seven thousand, one hundred twenty-one".