612503 has 4 divisors (see below), whose sum is σ = 644760. Its totient is φ = 580248.

The previous prime is 612497. The next prime is 612511. The reversal of 612503 is 305216.

612503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 612503 - 2⁶ = 612439 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612553) 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, 16100 + ... + 16137.

It is an arithmetic number, because the mean of its divisors is an integer number (161190).

2⁶¹²⁵⁰³ is an apocalyptic number.

612503 is a deficient number, since it is larger than the sum of its proper divisors (32257).

612503 is a wasteful number, since it uses less digits than its factorization.

612503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32256.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 612503 is about 782.6257087523. The cubic root of 612503 is about 84.9251012649.

Adding to 612503 its reverse (305216), we get a palindrome (917719).

The spelling of 612503 in words is "six hundred twelve thousand, five hundred three".