612400603 has 4 divisors (see below), whose sum is σ = 612521848. Its totient is φ = 612279360.

The previous prime is 612400543. The next prime is 612400669. The reversal of 612400603 is 306004216.

612400603 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 a de Polignac number, because none of the positive numbers 2^k-612400603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612400693) 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, 52701 + ... + 63262.

It is an arithmetic number, because the mean of its divisors is an integer number (153130462).

Almost surely, 2^612400603 is an apocalyptic number.

612400603 is a deficient number, since it is larger than the sum of its proper divisors (121245).

612400603 is a wasteful number, since it uses less digits than its factorization.

612400603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121244.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 612400603 is about 24746.7291374032. The cubic root of 612400603 is about 849.2036846615.

Adding to 612400603 its reverse (306004216), we get a palindrome (918404819).

The spelling of 612400603 in words is "six hundred twelve million, four hundred thousand, six hundred three".