27130001 has 4 divisors (see below), whose sum is σ = 27148212. Its totient is φ = 27111792.

The previous prime is 27129983. The next prime is 27130007. The reversal of 27130001 is 10003172.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7980625 + 19149376 = 2825^2 + 4376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27130001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27130007) 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, 6650 + ... + 9923.

It is an arithmetic number, because the mean of its divisors is an integer number (6787053).

Almost surely, 2^27130001 is an apocalyptic number.

It is an amenable number.

27130001 is a deficient number, since it is larger than the sum of its proper divisors (18211).

27130001 is a wasteful number, since it uses less digits than its factorization.

27130001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18210.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 27130001 is about 5208.6467532364. The cubic root of 27130001 is about 300.4807144857.

Adding to 27130001 its reverse (10003172), we get a palindrome (37133173).

The spelling of 27130001 in words is "twenty-seven million, one hundred thirty thousand, one".