1499780519 has 2 divisors, whose sum is σ = 1499780520. Its totient is φ = 1499780518.

The previous prime is 1499780467. The next prime is 1499780543. The reversal of 1499780519 is 9150879941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1499780519 - 2⁸ = 1499780263 is a prime.

It is a super-2 number, since 2×1499780519² = 4498683210343818722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1499780819) 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, 749890259 + 749890260.

It is an arithmetic number, because the mean of its divisors is an integer number (749890260).

Almost surely, 2^1499780519 is an apocalyptic number.

1499780519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499780519 is an equidigital number, since it uses as much as digits as its factorization.

1499780519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 53.

The square root of 1499780519 is about 38726.9998708911. Note that the first 3 decimals coincide. The cubic root of 1499780519 is about 1144.6584080463.

The spelling of 1499780519 in words is "one billion, four hundred ninety-nine million, seven hundred eighty thousand, five hundred nineteen".