224172401 has 2 divisors, whose sum is σ = 224172402. Its totient is φ = 224172400.

The previous prime is 224172341. The next prime is 224172449. The reversal of 224172401 is 104271422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223532401 + 640000 = 14951^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 224172401 - 2⁶ = 224172337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (224172101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112086200 + 112086201.

It is an arithmetic number, because the mean of its divisors is an integer number (112086201).

Almost surely, 2^224172401 is an apocalyptic number.

It is an amenable number.

224172401 is a deficient number, since it is larger than the sum of its proper divisors (1).

224172401 is an equidigital number, since it uses as much as digits as its factorization.

224172401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 224172401 is about 14972.3879524944. The cubic root of 224172401 is about 607.4735612580.

The spelling of 224172401 in words is "two hundred twenty-four million, one hundred seventy-two thousand, four hundred one".