228408541 has 2 divisors, whose sum is σ = 228408542. Its totient is φ = 228408540.

The previous prime is 228408533. The next prime is 228408547. The reversal of 228408541 is 145804822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153239641 + 75168900 = 12379^2 + 8670^2 .

It is a cyclic number.

It is not a de Polignac number, because 228408541 - 2³ = 228408533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228408497 and 228408506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228408547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114204270 + 114204271.

It is an arithmetic number, because the mean of its divisors is an integer number (114204271).

Almost surely, 2^228408541 is an apocalyptic number.

It is an amenable number.

228408541 is a deficient number, since it is larger than the sum of its proper divisors (1).

228408541 is an equidigital number, since it uses as much as digits as its factorization.

228408541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 228408541 is about 15113.1909602175. The cubic root of 228408541 is about 611.2761432327.

The spelling of 228408541 in words is "two hundred twenty-eight million, four hundred eight thousand, five hundred forty-one".