27273157 has 2 divisors, whose sum is σ = 27273158. Its totient is φ = 27273156.

The previous prime is 27273139. The next prime is 27273187. The reversal of 27273157 is 75137272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22033636 + 5239521 = 4694^2 + 2289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27273157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27273187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13636578 + 13636579.

It is an arithmetic number, because the mean of its divisors is an integer number (13636579).

Almost surely, 2^27273157 is an apocalyptic number.

It is an amenable number.

27273157 is a deficient number, since it is larger than the sum of its proper divisors (1).

27273157 is an equidigital number, since it uses as much as digits as its factorization.

27273157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20580, while the sum is 34.

The square root of 27273157 is about 5222.3708217629. The cubic root of 27273157 is about 301.0082999003.

The spelling of 27273157 in words is "twenty-seven million, two hundred seventy-three thousand, one hundred fifty-seven".