612306123 has 32 divisors (see below), whose sum is σ = 965352192. Its totient is φ = 340329600.

The previous prime is 612306061. The next prime is 612306133. The reversal of 612306123 is 321603216.

It is a happy number.

It is not a de Polignac number, because 612306123 - 2⁸ = 612305867 is a prime.

It is a super-2 number, since 2×612306123² = 749837576526582258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612306093 and 612306102.

It is not an unprimeable number, because it can be changed into a prime (612306133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62808 + ... + 71898.

It is an arithmetic number, because the mean of its divisors is an integer number (30167256).

Almost surely, 2^612306123 is an apocalyptic number.

612306123 is a deficient number, since it is larger than the sum of its proper divisors (353046069).

612306123 is a wasteful number, since it uses less digits than its factorization.

612306123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9275.

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

The square root of 612306123 is about 24744.8201246241. The cubic root of 612306123 is about 849.1600112391.

Adding to 612306123 its reverse (321603216), we get a palindrome (933909339).

The spelling of 612306123 in words is "six hundred twelve million, three hundred six thousand, one hundred twenty-three".