27130531 has 2 divisors, whose sum is σ = 27130532. Its totient is φ = 27130530.

The previous prime is 27130517. The next prime is 27130567. The reversal of 27130531 is 13503172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27130531 - 2¹³ = 27122339 is a prime.

It is a super-2 number, since 2×27130531² = 1472131424683922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27130031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13565265 + 13565266.

It is an arithmetic number, because the mean of its divisors is an integer number (13565266).

Almost surely, 2^27130531 is an apocalyptic number.

27130531 is a deficient number, since it is larger than the sum of its proper divisors (1).

27130531 is an equidigital number, since it uses as much as digits as its factorization.

27130531 is an evil number, because the sum of its binary digits is even.

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

The square root of 27130531 is about 5208.6976299263. The cubic root of 27130531 is about 300.4826711602.

The spelling of 27130531 in words is "twenty-seven million, one hundred thirty thousand, five hundred thirty-one".