27161601 has 8 divisors (see below), whose sum is σ = 36548160. Its totient is φ = 17941392.

The previous prime is 27161593. The next prime is 27161669. The reversal of 27161601 is 10616172.

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

It is not a de Polignac number, because 27161601 - 2³ = 27161593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27171601) 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 7 ways as a sum of consecutive naturals, for example, 41205 + ... + 41858.

It is an arithmetic number, because the mean of its divisors is an integer number (4568520).

Almost surely, 2^27161601 is an apocalyptic number.

It is an amenable number.

27161601 is a deficient number, since it is larger than the sum of its proper divisors (9386559).

27161601 is a wasteful number, since it uses less digits than its factorization.

27161601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83175.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 27161601 is about 5211.6792879071. The cubic root of 27161601 is about 300.5973320808.

Adding to 27161601 its reverse (10616172), we get a palindrome (37777773).

The spelling of 27161601 in words is "twenty-seven million, one hundred sixty-one thousand, six hundred one".