228204523 has 2 divisors, whose sum is σ = 228204524. Its totient is φ = 228204522.

The previous prime is 228204503. The next prime is 228204527. The reversal of 228204523 is 325402822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228204523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228204491 and 228204500.

It is not a weakly prime, because it can be changed into another prime (228204527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114102261 + 114102262.

It is an arithmetic number, because the mean of its divisors is an integer number (114102262).

Almost surely, 2^228204523 is an apocalyptic number.

228204523 is a deficient number, since it is larger than the sum of its proper divisors (1).

228204523 is an equidigital number, since it uses as much as digits as its factorization.

228204523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 228204523 is about 15106.4397857338. The cubic root of 228204523 is about 611.0940886192.

The spelling of 228204523 in words is "two hundred twenty-eight million, two hundred four thousand, five hundred twenty-three".