27156851 has 2 divisors, whose sum is σ = 27156852. Its totient is φ = 27156850.

The previous prime is 27156841. The next prime is 27156869. The reversal of 27156851 is 15865172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27156851 - 2¹⁰ = 27155827 is a prime.

It is not a weakly prime, because it can be changed into another prime (27156821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13578425 + 13578426.

It is an arithmetic number, because the mean of its divisors is an integer number (13578426).

Almost surely, 2^27156851 is an apocalyptic number.

27156851 is a deficient number, since it is larger than the sum of its proper divisors (1).

27156851 is an equidigital number, since it uses as much as digits as its factorization.

27156851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 35.

The square root of 27156851 is about 5211.2235607389. The cubic root of 27156851 is about 300.5798083154.

The spelling of 27156851 in words is "twenty-seven million, one hundred fifty-six thousand, eight hundred fifty-one".