224013917 has 2 divisors, whose sum is σ = 224013918. Its totient is φ = 224013916.

The previous prime is 224013887. The next prime is 224013919. The reversal of 224013917 is 719310422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223981156 + 32761 = 14966^2 + 181^2 .

It is a cyclic number.

It is not a de Polignac number, because 224013917 - 2¹⁶ = 223948381 is a prime.

Together with 224013919, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224013917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224013919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112006958 + 112006959.

It is an arithmetic number, because the mean of its divisors is an integer number (112006959).

Almost surely, 2^224013917 is an apocalyptic number.

It is an amenable number.

224013917 is a deficient number, since it is larger than the sum of its proper divisors (1).

224013917 is an equidigital number, since it uses as much as digits as its factorization.

224013917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 224013917 is about 14967.0944742124. The cubic root of 224013917 is about 607.3303715577.

The spelling of 224013917 in words is "two hundred twenty-four million, thirteen thousand, nine hundred seventeen".