227780213 has 2 divisors, whose sum is σ = 227780214. Its totient is φ = 227780212.

The previous prime is 227780183. The next prime is 227780233. The reversal of 227780213 is 312087722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159188689 + 68591524 = 12617^2 + 8282^2 .

It is a cyclic number.

It is not a de Polignac number, because 227780213 - 2¹⁴ = 227763829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227780213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227780233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113890106 + 113890107.

It is an arithmetic number, because the mean of its divisors is an integer number (113890107).

Almost surely, 2^227780213 is an apocalyptic number.

It is an amenable number.

227780213 is a deficient number, since it is larger than the sum of its proper divisors (1).

227780213 is an equidigital number, since it uses as much as digits as its factorization.

227780213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 227780213 is about 15092.3892409386. The cubic root of 227780213 is about 610.7151095636.

The spelling of 227780213 in words is "two hundred twenty-seven million, seven hundred eighty thousand, two hundred thirteen".