224154857 has 2 divisors, whose sum is σ = 224154858. Its totient is φ = 224154856.

The previous prime is 224154851. The next prime is 224154859. The reversal of 224154857 is 758451422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221295376 + 2859481 = 14876^2 + 1691^2 .

It is a cyclic number.

It is not a de Polignac number, because 224154857 - 2⁶ = 224154793 is a prime.

Together with 224154859, 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 224154857.

It is not a weakly prime, because it can be changed into another prime (224154851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112077428 + 112077429.

It is an arithmetic number, because the mean of its divisors is an integer number (112077429).

Almost surely, 2^224154857 is an apocalyptic number.

It is an amenable number.

224154857 is a deficient number, since it is larger than the sum of its proper divisors (1).

224154857 is an equidigital number, since it uses as much as digits as its factorization.

224154857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89600, while the sum is 38.

The square root of 224154857 is about 14971.8020625441. The cubic root of 224154857 is about 607.4577136423.

It can be divided in two parts, 22415 and 4857, that added together give a palindrome (27272).

The spelling of 224154857 in words is "two hundred twenty-four million, one hundred fifty-four thousand, eight hundred fifty-seven".