227309197 has 2 divisors, whose sum is σ = 227309198. Its totient is φ = 227309196.

The previous prime is 227309189. The next prime is 227309231. The reversal of 227309197 is 791903722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154480041 + 72829156 = 12429^2 + 8534^2 .

It is a cyclic number.

It is not a de Polignac number, because 227309197 - 2³ = 227309189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227309177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113654598 + 113654599.

It is an arithmetic number, because the mean of its divisors is an integer number (113654599).

Almost surely, 2^227309197 is an apocalyptic number.

It is an amenable number.

227309197 is a deficient number, since it is larger than the sum of its proper divisors (1).

227309197 is an equidigital number, since it uses as much as digits as its factorization.

227309197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 227309197 is about 15076.7767443841. The cubic root of 227309197 is about 610.2938627111.

The spelling of 227309197 in words is "two hundred twenty-seven million, three hundred nine thousand, one hundred ninety-seven".