1499903999 has 16 divisors (see below), whose sum is σ = 1735636896. Its totient is φ = 1281024000.

The previous prime is 1499903981. The next prime is 1499904013. The reversal of 1499903999 is 9993099941.

It is a cyclic number.

It is not a de Polignac number, because 1499903999 - 2²⁸ = 1231468543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1499900999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100949 + ... + 114849.

It is an arithmetic number, because the mean of its divisors is an integer number (108477306).

Almost surely, 2^1499903999 is an apocalyptic number.

1499903999 is a deficient number, since it is larger than the sum of its proper divisors (235732897).

1499903999 is a wasteful number, since it uses less digits than its factorization.

1499903999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14506.

The product of its (nonzero) digits is 6377292, while the sum is 62.

The square root of 1499903999 is about 38728.5940746627. The cubic root of 1499903999 is about 1144.6898212074.

The spelling of 1499903999 in words is "one billion, four hundred ninety-nine million, nine hundred three thousand, nine hundred ninety-nine".