1244002099 has 2 divisors, whose sum is σ = 1244002100. Its totient is φ = 1244002098.

The previous prime is 1244002073. The next prime is 1244002103. The reversal of 1244002099 is 9902004421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244002099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1244002099.

It is not a weakly prime, because it can be changed into another prime (1244002499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622001049 + 622001050.

It is an arithmetic number, because the mean of its divisors is an integer number (622001050).

Almost surely, 2^1244002099 is an apocalyptic number.

1244002099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244002099 is an equidigital number, since it uses as much as digits as its factorization.

1244002099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1244002099 is about 35270.4139329268. The cubic root of 1244002099 is about 1075.4916371014.

The spelling of 1244002099 in words is "one billion, two hundred forty-four million, two thousand, ninety-nine".