224400261997 has 2 divisors, whose sum is σ = 224400261998. Its totient is φ = 224400261996.

The previous prime is 224400261991. The next prime is 224400262087. The reversal of 224400261997 is 799162004422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198390958921 + 26009303076 = 445411^2 + 161274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224400261997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224400261991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112200130998 + 112200130999.

It is an arithmetic number, because the mean of its divisors is an integer number (112200130999).

Almost surely, 2^224400261997 is an apocalyptic number.

It is an amenable number.

224400261997 is a deficient number, since it is larger than the sum of its proper divisors (1).

224400261997 is an equidigital number, since it uses as much as digits as its factorization.

224400261997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 224400261997 in words is "two hundred twenty-four billion, four hundred million, two hundred sixty-one thousand, nine hundred ninety-seven".