27240131 has 2 divisors, whose sum is σ = 27240132. Its totient is φ = 27240130.

The previous prime is 27240097. The next prime is 27240133. The reversal of 27240131 is 13104272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27240131 - 2¹⁴ = 27223747 is a prime.

It is a super-2 number, since 2×27240131² = 1484049473794322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 27240133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27240133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13620065 + 13620066.

It is an arithmetic number, because the mean of its divisors is an integer number (13620066).

Almost surely, 2^27240131 is an apocalyptic number.

27240131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27240131 is an equidigital number, since it uses as much as digits as its factorization.

27240131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 27240131 is about 5219.2078900921. The cubic root of 27240131 is about 300.8867504040.

The spelling of 27240131 in words is "twenty-seven million, two hundred forty thousand, one hundred thirty-one".