27654149 has 2 divisors, whose sum is σ = 27654150. Its totient is φ = 27654148.

The previous prime is 27654127. The next prime is 27654173. The reversal of 27654149 is 94145672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26853124 + 801025 = 5182^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 27654149 - 2⁸ = 27653893 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27654199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13827074 + 13827075.

It is an arithmetic number, because the mean of its divisors is an integer number (13827075).

Almost surely, 2^27654149 is an apocalyptic number.

It is an amenable number.

27654149 is a deficient number, since it is larger than the sum of its proper divisors (1).

27654149 is an equidigital number, since it uses as much as digits as its factorization.

27654149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 27654149 is about 5258.7212323910. The cubic root of 27654149 is about 302.4034671376.

The spelling of 27654149 in words is "twenty-seven million, six hundred fifty-four thousand, one hundred forty-nine".