224979761 has 2 divisors, whose sum is σ = 224979762. Its totient is φ = 224979760.

The previous prime is 224979749. The next prime is 224979787. The reversal of 224979761 is 167979422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135582736 + 89397025 = 11644^2 + 9455^2 .

It is a cyclic number.

It is not a de Polignac number, because 224979761 - 2⁶ = 224979697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224979791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112489880 + 112489881.

It is an arithmetic number, because the mean of its divisors is an integer number (112489881).

Almost surely, 2^224979761 is an apocalyptic number.

It is an amenable number.

224979761 is a deficient number, since it is larger than the sum of its proper divisors (1).

224979761 is an equidigital number, since it uses as much as digits as its factorization.

224979761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 224979761 is about 14999.3253514950. The cubic root of 224979761 is about 608.2019623163.

The spelling of 224979761 in words is "two hundred twenty-four million, nine hundred seventy-nine thousand, seven hundred sixty-one".