612722123 has 8 divisors (see below), whose sum is σ = 660634800. Its totient is φ = 564920928.

The previous prime is 612722111. The next prime is 612722129. The reversal of 612722123 is 321227216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 612722123 - 2⁴ = 612722107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612722092 and 612722101.

It is not an unprimeable number, because it can be changed into a prime (612722129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16268 + ... + 38601.

It is an arithmetic number, because the mean of its divisors is an integer number (82579350).

Almost surely, 2^612722123 is an apocalyptic number.

612722123 is a deficient number, since it is larger than the sum of its proper divisors (47912677).

612722123 is a wasteful number, since it uses less digits than its factorization.

612722123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55741.

The product of its digits is 2016, while the sum is 26.

The square root of 612722123 is about 24753.2244970226. The cubic root of 612722123 is about 849.3522737814.

Adding to 612722123 its reverse (321227216), we get a palindrome (933949339).

The spelling of 612722123 in words is "six hundred twelve million, seven hundred twenty-two thousand, one hundred twenty-three".