1503323 has 4 divisors (see below), whose sum is σ = 1538328. Its totient is φ = 1468320.

The previous prime is 1503319. The next prime is 1503329. The reversal of 1503323 is 3233051.

1503323 is nontrivially palindromic in base 3.

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 1503323 - 2² = 1503319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1503329) 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, 17438 + ... + 17523.

It is an arithmetic number, because the mean of its divisors is an integer number (384582).

2^1503323 is an apocalyptic number.

1503323 is a deficient number, since it is larger than the sum of its proper divisors (35005).

1503323 is an equidigital number, since it uses as much as digits as its factorization.

1503323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35004.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 1503323 is about 1226.1007299566. The cubic root of 1503323 is about 114.5558926980. Note that the first 3 decimals are identical.

Adding to 1503323 its reverse (3233051), we get a palindrome (4736374).

The spelling of 1503323 in words is "one million, five hundred three thousand, three hundred twenty-three".