227946645 has 12 divisors (see below), whose sum is σ = 395107596. Its totient is φ = 121571520.

The previous prime is 227946637. The next prime is 227946647. The reversal of 227946645 is 546649722.

It can be written as a sum of positive squares in 2 ways, for example, as 67519089 + 160427556 = 8217^2 + 12666^2 .

It is not a de Polignac number, because 227946645 - 2³ = 227946637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5065481 = 227946645 / (2 + 2 + 7 + 9 + 4 + 6 + 6 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 227946645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227946647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2532696 + ... + 2532785.

It is an arithmetic number, because the mean of its divisors is an integer number (32925633).

Almost surely, 2^227946645 is an apocalyptic number.

It is an amenable number.

227946645 is a deficient number, since it is larger than the sum of its proper divisors (167160951).

227946645 is a wasteful number, since it uses less digits than its factorization.

227946645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065492 (or 5065489 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 227946645 is about 15097.9020065703. The cubic root of 227946645 is about 610.8638169368.

The spelling of 227946645 in words is "two hundred twenty-seven million, nine hundred forty-six thousand, six hundred forty-five".