1501003 has 8 divisors (see below), whose sum is σ = 1790208. Its totient is φ = 1230504.

The previous prime is 1500997. The next prime is 1501009. The reversal of 1501003 is 3001051.

It is an interprime number because it is at equal distance from previous prime (1500997) and next prime (1501009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1501003 - 2⁹ = 1500491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1501009) 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 7 ways as a sum of consecutive naturals, for example, 4501 + ... + 4822.

It is an arithmetic number, because the mean of its divisors is an integer number (223776).

2^1501003 is an apocalyptic number.

1501003 is a deficient number, since it is larger than the sum of its proper divisors (289205).

1501003 is an equidigital number, since it uses as much as digits as its factorization.

1501003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9353.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 1501003 is about 1225.1542759996. The cubic root of 1501003 is about 114.4969329791.

Adding to 1501003 its reverse (3001051), we get a palindrome (4502054).

The spelling of 1501003 in words is "one million, five hundred one thousand, three".