113221417 has 2 divisors, whose sum is σ = 113221418. Its totient is φ = 113221416.

The previous prime is 113221397. The next prime is 113221421. The reversal of 113221417 is 714122311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57927321 + 55294096 = 7611^2 + 7436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113221417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113221447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610708 + 56610709.

It is an arithmetic number, because the mean of its divisors is an integer number (56610709).

Almost surely, 2^113221417 is an apocalyptic number.

It is an amenable number.

113221417 is a deficient number, since it is larger than the sum of its proper divisors (1).

113221417 is an equidigital number, since it uses as much as digits as its factorization.

113221417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 22.

The square root of 113221417 is about 10640.5552956601. Note that the first 3 decimals coincide. The cubic root of 113221417 is about 483.7743766024.

Adding to 113221417 its reverse (714122311), we get a palindrome (827343728).

The spelling of 113221417 in words is "one hundred thirteen million, two hundred twenty-one thousand, four hundred seventeen".