27204161 has 2 divisors, whose sum is σ = 27204162. Its totient is φ = 27204160.

The previous prime is 27204113. The next prime is 27204167. The reversal of 27204161 is 16140272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26204161 + 1000000 = 5119^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 27204161 - 2¹⁸ = 26942017 is a prime.

It is not a weakly prime, because it can be changed into another prime (27204167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13602080 + 13602081.

It is an arithmetic number, because the mean of its divisors is an integer number (13602081).

Almost surely, 2^27204161 is an apocalyptic number.

It is an amenable number.

27204161 is a deficient number, since it is larger than the sum of its proper divisors (1).

27204161 is an equidigital number, since it uses as much as digits as its factorization.

27204161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 27204161 is about 5215.7608265717. The cubic root of 27204161 is about 300.7542539326.

The spelling of 27204161 in words is "twenty-seven million, two hundred four thousand, one hundred sixty-one".