228570263 has 2 divisors, whose sum is σ = 228570264. Its totient is φ = 228570262.

The previous prime is 228570197. The next prime is 228570283. The reversal of 228570263 is 362075822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228570263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228570283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114285131 + 114285132.

It is an arithmetic number, because the mean of its divisors is an integer number (114285132).

Almost surely, 2^228570263 is an apocalyptic number.

228570263 is a deficient number, since it is larger than the sum of its proper divisors (1).

228570263 is an equidigital number, since it uses as much as digits as its factorization.

228570263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 228570263 is about 15118.5403726683. The cubic root of 228570263 is about 611.4203781750.

The spelling of 228570263 in words is "two hundred twenty-eight million, five hundred seventy thousand, two hundred sixty-three".