27420131 has 2 divisors, whose sum is σ = 27420132. Its totient is φ = 27420130.

The previous prime is 27420121. The next prime is 27420143. The reversal of 27420131 is 13102472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27420131 - 2¹⁰ = 27419107 is a prime.

It is a super-2 number, since 2×27420131² = 1503727168114322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27420121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13710065 + 13710066.

It is an arithmetic number, because the mean of its divisors is an integer number (13710066).

Almost surely, 2^27420131 is an apocalyptic number.

27420131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27420131 is an equidigital number, since it uses as much as digits as its factorization.

27420131 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 27420131 is about 5236.4234931869. The cubic root of 27420131 is about 301.5480389192.

The spelling of 27420131 in words is "twenty-seven million, four hundred twenty thousand, one hundred thirty-one".