228223547 has 2 divisors, whose sum is σ = 228223548. Its totient is φ = 228223546.

The previous prime is 228223543. The next prime is 228223579. The reversal of 228223547 is 745322822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228223547 - 2² = 228223543 is a prime.

It is a super-2 number, since 2×228223547² = 104171974810522418, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (228223543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114111773 + 114111774.

It is an arithmetic number, because the mean of its divisors is an integer number (114111774).

Almost surely, 2^228223547 is an apocalyptic number.

228223547 is a deficient number, since it is larger than the sum of its proper divisors (1).

228223547 is an equidigital number, since it uses as much as digits as its factorization.

228223547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 35.

The square root of 228223547 is about 15107.0694378493. The cubic root of 228223547 is about 611.1110691925. Note that the first 3 decimals are identical.

The spelling of 228223547 in words is "two hundred twenty-eight million, two hundred twenty-three thousand, five hundred forty-seven".