27012101 has 4 divisors (see below), whose sum is σ = 27337632. Its totient is φ = 26686572.

The previous prime is 27012023. The next prime is 27012103. The reversal of 27012101 is 10121072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27012101 - 2²² = 22817797 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27012103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162641 + ... + 162806.

It is an arithmetic number, because the mean of its divisors is an integer number (6834408).

Almost surely, 2^27012101 is an apocalyptic number.

It is an amenable number.

27012101 is a deficient number, since it is larger than the sum of its proper divisors (325531).

27012101 is an equidigital number, since it uses as much as digits as its factorization.

27012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325530.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 27012101 is about 5197.3167115349. The cubic root of 27012101 is about 300.0448118245.

Adding to 27012101 its reverse (10121072), we get a palindrome (37133173).

The spelling of 27012101 in words is "twenty-seven million, twelve thousand, one hundred one".