27530131 has 4 divisors (see below), whose sum is σ = 27570664. Its totient is φ = 27489600.

The previous prime is 27530119. The next prime is 27530141. The reversal of 27530131 is 13103572.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27530131 is a prime.

It is a super-2 number, since 2×27530131² = 1515816225754322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27530101) 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 3 ways as a sum of consecutive naturals, for example, 19230 + ... + 20611.

It is an arithmetic number, because the mean of its divisors is an integer number (6892666).

Almost surely, 2^27530131 is an apocalyptic number.

27530131 is a deficient number, since it is larger than the sum of its proper divisors (40533).

27530131 is an equidigital number, since it uses as much as digits as its factorization.

27530131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40532.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 27530131 is about 5246.9163324757. The cubic root of 27530131 is about 301.9507360836.

The spelling of 27530131 in words is "twenty-seven million, five hundred thirty thousand, one hundred thirty-one".