227919413 has 2 divisors, whose sum is σ = 227919414. Its totient is φ = 227919412.

The previous prime is 227919389. The next prime is 227919449. The reversal of 227919413 is 314919722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227919409 + 4 = 15097^2 + 2^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227919413 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 (227919473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113959706 + 113959707.

It is an arithmetic number, because the mean of its divisors is an integer number (113959707).

Almost surely, 2^227919413 is an apocalyptic number.

It is an amenable number.

227919413 is a deficient number, since it is larger than the sum of its proper divisors (1).

227919413 is an equidigital number, since it uses as much as digits as its factorization.

227919413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 227919413 is about 15097.0001324767. Note that the first 3 decimals coincide. The cubic root of 227919413 is about 610.8394900365.

The spelling of 227919413 in words is "two hundred twenty-seven million, nine hundred nineteen thousand, four hundred thirteen".