612123603 has 16 divisors (see below), whose sum is σ = 1004510976. Its totient is φ = 322878240.

The previous prime is 612123583. The next prime is 612123661. The reversal of 612123603 is 306321216.

It is a happy number.

612123603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 612123603 - 2¹³ = 612115411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612123683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120833 + ... + 1121378.

It is an arithmetic number, because the mean of its divisors is an integer number (62781936).

Almost surely, 2^612123603 is an apocalyptic number.

612123603 is a deficient number, since it is larger than the sum of its proper divisors (392387373).

612123603 is a wasteful number, since it uses less digits than its factorization.

612123603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242234.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 612123603 is about 24741.1318051539. The cubic root of 612123603 is about 849.0756285630.

Adding to 612123603 its reverse (306321216), we get a palindrome (918444819).

The spelling of 612123603 in words is "six hundred twelve million, one hundred twenty-three thousand, six hundred three".