27013531 has 2 divisors, whose sum is σ = 27013532. Its totient is φ = 27013530.

The previous prime is 27013507. The next prime is 27013543. The reversal of 27013531 is 13531072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27013531 - 2⁵ = 27013499 is a prime.

It is a super-2 number, since 2×27013531² = 1459461714175922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27013031) 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, 13506765 + 13506766.

It is an arithmetic number, because the mean of its divisors is an integer number (13506766).

Almost surely, 2^27013531 is an apocalyptic number.

27013531 is a deficient number, since it is larger than the sum of its proper divisors (1).

27013531 is an equidigital number, since it uses as much as digits as its factorization.

27013531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 27013531 is about 5197.4542807032. The cubic root of 27013531 is about 300.0501064455.

The spelling of 27013531 in words is "twenty-seven million, thirteen thousand, five hundred thirty-one".