1327503 has 4 divisors (see below), whose sum is σ = 1770008. Its totient is φ = 885000.

The previous prime is 1327489. The next prime is 1327517. The reversal of 1327503 is 3057231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3057231 = 3 ⋅1019077.

It is an interprime number because it is at equal distance from previous prime (1327489) and next prime (1327517).

It is not a de Polignac number, because 1327503 - 2¹⁷ = 1196431 is a prime.

It is a D-number.

It is a Duffinian number.

1327503 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1327503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327303) 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, 221248 + ... + 221253.

It is an arithmetic number, because the mean of its divisors is an integer number (442502).

2^1327503 is an apocalyptic number.

1327503 is a deficient number, since it is larger than the sum of its proper divisors (442505).

1327503 is an equidigital number, since it uses as much as digits as its factorization.

1327503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442504.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 1327503 is about 1152.1731640687. The cubic root of 1327503 is about 109.9035794190.

It can be divided in two parts, 1327 and 503, that added together give a triangular number (1830 = T₆₀).

The spelling of 1327503 in words is "one million, three hundred twenty-seven thousand, five hundred three".