228031057 has 2 divisors, whose sum is σ = 228031058. Its totient is φ = 228031056.

The previous prime is 228031043. The next prime is 228031061. The reversal of 228031057 is 750130822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226683136 + 1347921 = 15056^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 228031057 - 2¹⁵ = 227998289 is a prime.

It is not a weakly prime, because it can be changed into another prime (228031007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114015528 + 114015529.

It is an arithmetic number, because the mean of its divisors is an integer number (114015529).

Almost surely, 2^228031057 is an apocalyptic number.

It is an amenable number.

228031057 is a deficient number, since it is larger than the sum of its proper divisors (1).

228031057 is an equidigital number, since it uses as much as digits as its factorization.

228031057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 228031057 is about 15100.6972355584. The cubic root of 228031057 is about 610.9392115872.

Adding to 228031057 its reverse (750130822), we get a palindrome (978161879).

The spelling of 228031057 in words is "two hundred twenty-eight million, thirty-one thousand, fifty-seven".