27090139 has 2 divisors, whose sum is σ = 27090140. Its totient is φ = 27090138.

The previous prime is 27090131. The next prime is 27090157. The reversal of 27090139 is 93109072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27090139 - 2³ = 27090131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27090139.

It is not a weakly prime, because it can be changed into another prime (27090131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13545069 + 13545070.

It is an arithmetic number, because the mean of its divisors is an integer number (13545070).

Almost surely, 2^27090139 is an apocalyptic number.

27090139 is a deficient number, since it is larger than the sum of its proper divisors (1).

27090139 is an equidigital number, since it uses as much as digits as its factorization.

27090139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 27090139 is about 5204.8188248968. The cubic root of 27090139 is about 300.3334773204. Note that the first 3 decimals are identical.

It can be divided in two parts, 270 and 90139, that added together give a palindrome (90409).

The spelling of 27090139 in words is "twenty-seven million, ninety thousand, one hundred thirty-nine".