228035813 has 2 divisors, whose sum is σ = 228035814. Its totient is φ = 228035812.

The previous prime is 228035803. The next prime is 228035833. The reversal of 228035813 is 318530822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218537089 + 9498724 = 14783^2 + 3082^2 .

It is a cyclic number.

It is not a de Polignac number, because 228035813 - 2⁸ = 228035557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228035813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228035803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114017906 + 114017907.

It is an arithmetic number, because the mean of its divisors is an integer number (114017907).

Almost surely, 2^228035813 is an apocalyptic number.

It is an amenable number.

228035813 is a deficient number, since it is larger than the sum of its proper divisors (1).

228035813 is an equidigital number, since it uses as much as digits as its factorization.

228035813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 228035813 is about 15100.8547109096. The cubic root of 228035813 is about 610.9434589717.

The spelling of 228035813 in words is "two hundred twenty-eight million, thirty-five thousand, eight hundred thirteen".