30227173 has 4 divisors (see below), whose sum is σ = 32005260. Its totient is φ = 28449088.

The previous prime is 30227149. The next prime is 30227191. The reversal of 30227173 is 37172203.

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 14876449 + 15350724 = 3857^2 + 3918^2 .

It is a cyclic number.

It is not a de Polignac number, because 30227173 - 2⁹ = 30226661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221173) 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, 889018 + ... + 889051.

It is an arithmetic number, because the mean of its divisors is an integer number (8001315).

Almost surely, 2^30227173 is an apocalyptic number.

It is an amenable number.

30227173 is a deficient number, since it is larger than the sum of its proper divisors (1778087).

30227173 is a wasteful number, since it uses less digits than its factorization.

30227173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778086.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 30227173 is about 5497.9244265450. The cubic root of 30227173 is about 311.5055895361.

Adding to 30227173 its reverse (37172203), we get a palindrome (67399376).

The spelling of 30227173 in words is "thirty million, two hundred twenty-seven thousand, one hundred seventy-three".