228171077 has 2 divisors, whose sum is σ = 228171078. Its totient is φ = 228171076.

The previous prime is 228171061. The next prime is 228171103. The reversal of 228171077 is 770171822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125574436 + 102596641 = 11206^2 + 10129^2 .

It is a cyclic number.

It is not a de Polignac number, because 228171077 - 2⁴ = 228171061 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 (228171007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114085538 + 114085539.

It is an arithmetic number, because the mean of its divisors is an integer number (114085539).

Almost surely, 2^228171077 is an apocalyptic number.

It is an amenable number.

228171077 is a deficient number, since it is larger than the sum of its proper divisors (1).

228171077 is an equidigital number, since it uses as much as digits as its factorization.

228171077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 228171077 is about 15105.3327338394. The cubic root of 228171077 is about 611.0642328693.

The spelling of 228171077 in words is "two hundred twenty-eight million, one hundred seventy-one thousand, seventy-seven".