228912941 has 2 divisors, whose sum is σ = 228912942. Its totient is φ = 228912940.

The previous prime is 228912917. The next prime is 228912949. The reversal of 228912941 is 149219822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119814916 + 109098025 = 10946^2 + 10445^2 .

It is a cyclic number.

It is not a de Polignac number, because 228912941 - 2⁶ = 228912877 is a prime.

It is a super-2 number, since 2×228912941² = 104802269114538962, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228912895 and 228912904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228912949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114456470 + 114456471.

It is an arithmetic number, because the mean of its divisors is an integer number (114456471).

Almost surely, 2^228912941 is an apocalyptic number.

It is an amenable number.

228912941 is a deficient number, since it is larger than the sum of its proper divisors (1).

228912941 is an equidigital number, since it uses as much as digits as its factorization.

228912941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 228912941 is about 15129.8691666518. The cubic root of 228912941 is about 611.7257776187.

The spelling of 228912941 in words is "two hundred twenty-eight million, nine hundred twelve thousand, nine hundred forty-one".