27159031 has 2 divisors, whose sum is σ = 27159032. Its totient is φ = 27159030.

The previous prime is 27159029. The next prime is 27159103. The reversal of 27159031 is 13095172.

Together with next prime (27159103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27159031 - 2¹ = 27159029 is a prime.

It is a super-2 number, since 2×27159031² = 1475225929717922, which contains 22 as substring.

Together with 27159029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27151031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13579515 + 13579516.

It is an arithmetic number, because the mean of its divisors is an integer number (13579516).

Almost surely, 2^27159031 is an apocalyptic number.

27159031 is a deficient number, since it is larger than the sum of its proper divisors (1).

27159031 is an equidigital number, since it uses as much as digits as its factorization.

27159031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 27159031 is about 5211.4327204714. The cubic root of 27159031 is about 300.5878510551.

It can be divided in two parts, 2715903 and 1, that added together give a square (2715904 = 1648²).

The spelling of 27159031 in words is "twenty-seven million, one hundred fifty-nine thousand, thirty-one".