27205129 has 8 divisors (see below), whose sum is σ = 31518080. Its totient is φ = 22998816.

The previous prime is 27205121. The next prime is 27205153. The reversal of 27205129 is 92150272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27205129 - 2³ = 27205121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27205097 and 27205106.

It is not an unprimeable number, because it can be changed into a prime (27205121) 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 7 ways as a sum of consecutive naturals, for example, 26109 + ... + 27130.

It is an arithmetic number, because the mean of its divisors is an integer number (3939760).

Almost surely, 2^27205129 is an apocalyptic number.

It is an amenable number.

27205129 is a deficient number, since it is larger than the sum of its proper divisors (4312951).

27205129 is an equidigital number, since it uses as much as digits as its factorization.

27205129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53319.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 27205129 is about 5215.8536214123. The cubic root of 27205129 is about 300.7578211157.

The spelling of 27205129 in words is "twenty-seven million, two hundred five thousand, one hundred twenty-nine".