228785203 has 2 divisors, whose sum is σ = 228785204. Its totient is φ = 228785202.

The previous prime is 228785129. The next prime is 228785261. The reversal of 228785203 is 302587822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228785203 is a prime.

It is a super-2 number, since 2×228785203² = 104685338223502418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (228785273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114392601 + 114392602.

It is an arithmetic number, because the mean of its divisors is an integer number (114392602).

Almost surely, 2^228785203 is an apocalyptic number.

228785203 is a deficient number, since it is larger than the sum of its proper divisors (1).

228785203 is an equidigital number, since it uses as much as digits as its factorization.

228785203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 228785203 is about 15125.6471927650. The cubic root of 228785203 is about 611.6119713739.

The spelling of 228785203 in words is "two hundred twenty-eight million, seven hundred eighty-five thousand, two hundred three".