27137139 has 4 divisors (see below), whose sum is σ = 36182856. Its totient is φ = 18091424.

The previous prime is 27137137. The next prime is 27137141. The reversal of 27137139 is 93173172.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (27137137) and next prime (27137141).

It is a cyclic number.

It is not a de Polignac number, because 27137139 - 2¹ = 27137137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27137137) 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 in 3 ways as a sum of consecutive naturals, for example, 4522854 + ... + 4522859.

It is an arithmetic number, because the mean of its divisors is an integer number (9045714).

Almost surely, 2^27137139 is an apocalyptic number.

27137139 is a deficient number, since it is larger than the sum of its proper divisors (9045717).

27137139 is an equidigital number, since it uses as much as digits as its factorization.

27137139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045716.

The product of its digits is 7938, while the sum is 33.

The square root of 27137139 is about 5209.3319149388. The cubic root of 27137139 is about 300.5070646907.

The spelling of 27137139 in words is "twenty-seven million, one hundred thirty-seven thousand, one hundred thirty-nine".