1499799859 has 2 divisors, whose sum is σ = 1499799860. Its totient is φ = 1499799858.

The previous prime is 1499799841. The next prime is 1499799869. The reversal of 1499799859 is 9589979941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1499799859 - 2⁷ = 1499799731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1499799839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749899929 + 749899930.

It is an arithmetic number, because the mean of its divisors is an integer number (749899930).

Almost surely, 2^1499799859 is an apocalyptic number.

1499799859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499799859 is an equidigital number, since it uses as much as digits as its factorization.

1499799859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66134880, while the sum is 70.

The square root of 1499799859 is about 38727.2495666811. The cubic root of 1499799859 is about 1144.6633282325.

The spelling of 1499799859 in words is "one billion, four hundred ninety-nine million, seven hundred ninety-nine thousand, eight hundred fifty-nine".