27221146 has 4 divisors (see below), whose sum is σ = 40831722. Its totient is φ = 13610572.

The previous prime is 27221123. The next prime is 27221153. The reversal of 27221146 is 64112272.

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

It can be written as a sum of positive squares in only one way, i.e., 26635921 + 585225 = 5161^2 + 765^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27221146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6805285 + ... + 6805288.

Almost surely, 2^27221146 is an apocalyptic number.

27221146 is a deficient number, since it is larger than the sum of its proper divisors (13610576).

27221146 is a wasteful number, since it uses less digits than its factorization.

27221146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13610575.

The product of its digits is 1344, while the sum is 25.

The square root of 27221146 is about 5217.3888105067. The cubic root of 27221146 is about 300.8168331859.

The spelling of 27221146 in words is "twenty-seven million, two hundred twenty-one thousand, one hundred forty-six".