27132231 has 24 divisors (see below), whose sum is σ = 42280320. Its totient is φ = 15431472.

The previous prime is 27132229. The next prime is 27132239. The reversal of 27132231 is 13223172.

It is not a de Polignac number, because 27132231 - 2¹ = 27132229 is a prime.

It is a super-2 number, since 2×27132231² = 1472315918074722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 27132198 and 27132207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27132239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55470 + ... + 55956.

It is an arithmetic number, because the mean of its divisors is an integer number (1761680).

Almost surely, 2^27132231 is an apocalyptic number.

27132231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27132231 is a deficient number, since it is larger than the sum of its proper divisors (15148089).

27132231 is a wasteful number, since it uses less digits than its factorization.

27132231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 876 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 27132231 is about 5208.8608159558. The cubic root of 27132231 is about 300.4889471139.

The spelling of 27132231 in words is "twenty-seven million, one hundred thirty-two thousand, two hundred thirty-one".