27120019 has 2 divisors, whose sum is σ = 27120020. Its totient is φ = 27120018.

The previous prime is 27120007. The next prime is 27120043. The reversal of 27120019 is 91002172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27120019 - 2¹⁵ = 27087251 is a prime.

It is a super-2 number, since 2×27120019² = 1470990861120722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27120719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13560009 + 13560010.

It is an arithmetic number, because the mean of its divisors is an integer number (13560010).

Almost surely, 2^27120019 is an apocalyptic number.

27120019 is a deficient number, since it is larger than the sum of its proper divisors (1).

27120019 is an equidigital number, since it uses as much as digits as its factorization.

27120019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 27120019 is about 5207.6884507428. The cubic root of 27120019 is about 300.4438577918.

The spelling of 27120019 in words is "twenty-seven million, one hundred twenty thousand, nineteen".