1372003 has 4 divisors (see below), whose sum is σ = 1375920. Its totient is φ = 1368088.

The previous prime is 1371991. The next prime is 1372027. The reversal of 1372003 is 3002731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3002731 = 941 ⋅3191.

It is a cyclic number.

It is not a de Polignac number, because 1372003 - 2¹³ = 1363811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1372043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375 + ... + 2152.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

2^1372003 is an apocalyptic number.

1372003 is a deficient number, since it is larger than the sum of its proper divisors (3917).

1372003 is an equidigital number, since it uses as much as digits as its factorization.

1372003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 1372003 is about 1171.3253177491. The cubic root of 1372003 is about 111.1181546276.

Adding to 1372003 its reverse (3002731), we get a palindrome (4374734).

The spelling of 1372003 in words is "one million, three hundred seventy-two thousand, three".