228696545 has 32 divisors (see below), whose sum is σ = 343526400. Its totient is φ = 141992640.

The previous prime is 228696539. The next prime is 228696551. The reversal of 228696545 is 545696822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228696539) and next prime (228696551).

It is not a de Polignac number, because 228696545 - 2⁸ = 228696289 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 228696545.

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 31 ways as a sum of consecutive naturals, for example, 107906 + ... + 110004.

It is an arithmetic number, because the mean of its divisors is an integer number (10735200).

Almost surely, 2^228696545 is an apocalyptic number.

It is an amenable number.

228696545 is a deficient number, since it is larger than the sum of its proper divisors (114829855).

228696545 is a wasteful number, since it uses less digits than its factorization.

228696545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405.

The product of its digits is 1036800, while the sum is 47.

The square root of 228696545 is about 15122.7161912138. The cubic root of 228696545 is about 611.5329579599.

The spelling of 228696545 in words is "two hundred twenty-eight million, six hundred ninety-six thousand, five hundred forty-five".