27465131 has 4 divisors (see below), whose sum is σ = 27519600. Its totient is φ = 27410664.

The previous prime is 27465103. The next prime is 27465161. The reversal of 27465131 is 13156472.

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

It is a cyclic number.

It is not a de Polignac number, because 27465131 - 2²² = 23270827 is a prime.

It is a super-2 number, since 2×27465131² = 1508666841694322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27465094 and 27465103.

It is not an unprimeable number, because it can be changed into a prime (27465161) 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, 26471 + ... + 27488.

It is an arithmetic number, because the mean of its divisors is an integer number (6879900).

Almost surely, 2^27465131 is an apocalyptic number.

27465131 is a deficient number, since it is larger than the sum of its proper divisors (54469).

27465131 is an equidigital number, since it uses as much as digits as its factorization.

27465131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54468.

The product of its digits is 5040, while the sum is 29.

The square root of 27465131 is about 5240.7185576026. The cubic root of 27465131 is about 301.7129086071.

The spelling of 27465131 in words is "twenty-seven million, four hundred sixty-five thousand, one hundred thirty-one".