27147001 has 4 divisors (see below), whose sum is σ = 31025152. Its totient is φ = 23268852.

The previous prime is 27146981. The next prime is 27147031. The reversal of 27147001 is 10074172.

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 a de Polignac number, because none of the positive numbers 2^k-27147001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27147031) 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, 1939065 + ... + 1939078.

It is an arithmetic number, because the mean of its divisors is an integer number (7756288).

Almost surely, 2^27147001 is an apocalyptic number.

It is an amenable number.

27147001 is a deficient number, since it is larger than the sum of its proper divisors (3878151).

27147001 is an equidigital number, since it uses as much as digits as its factorization.

27147001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878150.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 27147001 is about 5210.2783994716. The cubic root of 27147001 is about 300.5434630467.

The spelling of 27147001 in words is "twenty-seven million, one hundred forty-seven thousand, one".