228171061 has 2 divisors, whose sum is σ = 228171062. Its totient is φ = 228171060.

The previous prime is 228171037. The next prime is 228171077. The reversal of 228171061 is 160171822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227828836 + 342225 = 15094^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 228171061 - 2²⁷ = 93953333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228171761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114085530 + 114085531.

It is an arithmetic number, because the mean of its divisors is an integer number (114085531).

Almost surely, 2^228171061 is an apocalyptic number.

It is an amenable number.

228171061 is a deficient number, since it is larger than the sum of its proper divisors (1).

228171061 is an equidigital number, since it uses as much as digits as its factorization.

228171061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 228171061 is about 15105.3322042251. The cubic root of 228171061 is about 611.0642185861.

The spelling of 228171061 in words is "two hundred twenty-eight million, one hundred seventy-one thousand, sixty-one".