27131361 has 16 divisors (see below), whose sum is σ = 37173504. Its totient is φ = 17593344.

The previous prime is 27131339. The next prime is 27131369. The reversal of 27131361 is 16313172.

It is not a de Polignac number, because 27131361 - 2¹³ = 27123169 is a prime.

It is a super-2 number, since 2×27131361² = 1472221499424642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27131369) 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 in 15 ways as a sum of consecutive naturals, for example, 26715 + ... + 27711.

It is an arithmetic number, because the mean of its divisors is an integer number (2323344).

Almost surely, 2^27131361 is an apocalyptic number.

It is an amenable number.

27131361 is a deficient number, since it is larger than the sum of its proper divisors (10042143).

27131361 is a wasteful number, since it uses less digits than its factorization.

27131361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240.

The product of its digits is 756, while the sum is 24.

The square root of 27131361 is about 5208.7773037441. Note that the first 3 decimals coincide. The cubic root of 27131361 is about 300.4857353350.

The spelling of 27131361 in words is "twenty-seven million, one hundred thirty-one thousand, three hundred sixty-one".