228122357 has 2 divisors, whose sum is σ = 228122358. Its totient is φ = 228122356.

The previous prime is 228122351. The next prime is 228122383. The reversal of 228122357 is 753221822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146870161 + 81252196 = 12119^2 + 9014^2 .

It is a cyclic number.

It is not a de Polignac number, because 228122357 - 2⁸ = 228122101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228122351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114061178 + 114061179.

It is an arithmetic number, because the mean of its divisors is an integer number (114061179).

Almost surely, 2^228122357 is an apocalyptic number.

It is an amenable number.

228122357 is a deficient number, since it is larger than the sum of its proper divisors (1).

228122357 is an equidigital number, since it uses as much as digits as its factorization.

228122357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 228122357 is about 15103.7199722452. The cubic root of 228122357 is about 611.0207374813.

The spelling of 228122357 in words is "two hundred twenty-eight million, one hundred twenty-two thousand, three hundred fifty-seven".