227020645 has 16 divisors (see below), whose sum is σ = 288872640. Its totient is φ = 170792064.

The previous prime is 227020631. The next prime is 227020663. The reversal of 227020645 is 546020722.

It is not a de Polignac number, because 227020645 - 2⁹ = 227020133 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4294 + ... + 21736.

It is an arithmetic number, because the mean of its divisors is an integer number (18054540).

Almost surely, 2^227020645 is an apocalyptic number.

It is an amenable number.

227020645 is a deficient number, since it is larger than the sum of its proper divisors (61851995).

227020645 is a wasteful number, since it uses less digits than its factorization.

227020645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17604.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 227020645 is about 15067.2042861309. The cubic root of 227020645 is about 610.0355125791.

The spelling of 227020645 in words is "two hundred twenty-seven million, twenty thousand, six hundred forty-five".