1499903 has 4 divisors (see below), whose sum is σ = 1536528. Its totient is φ = 1463280.

The previous prime is 1499891. The next prime is 1499921. The reversal of 1499903 is 3099941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1499903 - 2¹⁴ = 1483519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1499933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18251 + ... + 18332.

It is an arithmetic number, because the mean of its divisors is an integer number (384132).

2^1499903 is an apocalyptic number.

1499903 is a deficient number, since it is larger than the sum of its proper divisors (36625).

1499903 is an equidigital number, since it uses as much as digits as its factorization.

1499903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36624.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 1499903 is about 1224.7052706672. The cubic root of 1499903 is about 114.4689567070.

The spelling of 1499903 in words is "one million, four hundred ninety-nine thousand, nine hundred three".