228313065 has 16 divisors (see below), whose sum is σ = 381184128. Its totient is φ = 116472576.

The previous prime is 228313061. The next prime is 228313091. The reversal of 228313065 is 560313822.

It is not a de Polignac number, because 228313065 - 2² = 228313061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228313061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330544 + ... + 331233.

It is an arithmetic number, because the mean of its divisors is an integer number (23824008).

Almost surely, 2^228313065 is an apocalyptic number.

It is an amenable number.

228313065 is a deficient number, since it is larger than the sum of its proper divisors (152871063).

228313065 is a wasteful number, since it uses less digits than its factorization.

228313065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661808.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 228313065 is about 15110.0319324613. The cubic root of 228313065 is about 611.1909591227.

Adding to 228313065 its reverse (560313822), we get a palindrome (788626887).

The spelling of 228313065 in words is "two hundred twenty-eight million, three hundred thirteen thousand, sixty-five".