1499403 has 4 divisors (see below), whose sum is σ = 1999208. Its totient is φ = 999600.

The previous prime is 1499389. The next prime is 1499413. The reversal of 1499403 is 3049941.

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

It is not a de Polignac number, because 1499403 - 2¹⁰ = 1498379 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1499413) 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, 249898 + ... + 249903.

It is an arithmetic number, because the mean of its divisors is an integer number (499802).

2^1499403 is an apocalyptic number.

1499403 is a deficient number, since it is larger than the sum of its proper divisors (499805).

1499403 is an equidigital number, since it uses as much as digits as its factorization.

1499403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499804.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1499403 is about 1224.5011229068. The cubic root of 1499403 is about 114.4562356979.

The spelling of 1499403 in words is "one million, four hundred ninety-nine thousand, four hundred three".