199224629 has 2 divisors, whose sum is σ = 199224630. Its totient is φ = 199224628.

The previous prime is 199224607. The next prime is 199224637. The reversal of 199224629 is 926422991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163200625 + 36024004 = 12775^2 + 6002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199224629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199224629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199224659) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99612314 + 99612315.

It is an arithmetic number, because the mean of its divisors is an integer number (99612315).

Almost surely, 2^199224629 is an apocalyptic number.

It is an amenable number.

199224629 is a deficient number, since it is larger than the sum of its proper divisors (1).

199224629 is an equidigital number, since it uses as much as digits as its factorization.

199224629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 199224629 is about 14114.6954979553. The cubic root of 199224629 is about 584.0468360589.

The spelling of 199224629 in words is "one hundred ninety-nine million, two hundred twenty-four thousand, six hundred twenty-nine".