27204131 has 4 divisors (see below), whose sum is σ = 28804392. Its totient is φ = 25603872.

The previous prime is 27204113. The next prime is 27204161. The reversal of 27204131 is 13140272.

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-27204131 is a prime.

It is a super-2 number, since 2×27204131² = 1480129486930322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27204161) 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, 800105 + ... + 800138.

It is an arithmetic number, because the mean of its divisors is an integer number (7201098).

Almost surely, 2^27204131 is an apocalyptic number.

27204131 is a deficient number, since it is larger than the sum of its proper divisors (1600261).

27204131 is a wasteful number, since it uses less digits than its factorization.

27204131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600260.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 27204131 is about 5215.7579506722. The cubic root of 27204131 is about 300.7541433781.

The spelling of 27204131 in words is "twenty-seven million, two hundred four thousand, one hundred thirty-one".