27645151 has 2 divisors, whose sum is σ = 27645152. Its totient is φ = 27645150.

The previous prime is 27645119. The next prime is 27645157. The reversal of 27645151 is 15154672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27645151 - 2⁵ = 27645119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27645157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13822575 + 13822576.

It is an arithmetic number, because the mean of its divisors is an integer number (13822576).

Almost surely, 2^27645151 is an apocalyptic number.

27645151 is a deficient number, since it is larger than the sum of its proper divisors (1).

27645151 is an equidigital number, since it uses as much as digits as its factorization.

27645151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 27645151 is about 5257.8656316038. The cubic root of 27645151 is about 302.3706652897.

The spelling of 27645151 in words is "twenty-seven million, six hundred forty-five thousand, one hundred fifty-one".