1012503 has 8 divisors (see below), whose sum is σ = 1429488. Its totient is φ = 635264.

The previous prime is 1012489. The next prime is 1012507. The reversal of 1012503 is 3052101.

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 1012503 - 2⁶ = 1012439 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012507) 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, 9876 + ... + 9977.

It is an arithmetic number, because the mean of its divisors is an integer number (178686).

2^1012503 is an apocalyptic number.

1012503 is a deficient number, since it is larger than the sum of its proper divisors (416985).

1012503 is a wasteful number, since it uses less digits than its factorization.

1012503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19873.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1012503 is about 1006.2320805858. The cubic root of 1012503 is about 100.4150416875.

Adding to 1012503 its reverse (3052101), we get a palindrome (4064604).

The spelling of 1012503 in words is "one million, twelve thousand, five hundred three".