1499395217 has 2 divisors, whose sum is σ = 1499395218. Its totient is φ = 1499395216.

The previous prime is 1499395213. The next prime is 1499395301. The reversal of 1499395217 is 7125939941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1499160961 + 234256 = 38719^2 + 484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1499395217 - 2² = 1499395213 is a prime.

It is not a weakly prime, because it can be changed into another prime (1499395213) 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, 749697608 + 749697609.

It is an arithmetic number, because the mean of its divisors is an integer number (749697609).

Almost surely, 2^1499395217 is an apocalyptic number.

It is an amenable number.

1499395217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499395217 is an equidigital number, since it uses as much as digits as its factorization.

1499395217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 50.

The square root of 1499395217 is about 38722.0249599630. The cubic root of 1499395217 is about 1144.5603766028.

The spelling of 1499395217 in words is "one billion, four hundred ninety-nine million, three hundred ninety-five thousand, two hundred seventeen".