612272123 has 4 divisors (see below), whose sum is σ = 616946088. Its totient is φ = 607598160.

The previous prime is 612272113. The next prime is 612272161. The reversal of 612272123 is 321272216.

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 612272123 - 2⁴ = 612272107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612272092 and 612272101.

It is not an unprimeable number, because it can be changed into a prime (612272113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336786 + ... + 2337047.

It is an arithmetic number, because the mean of its divisors is an integer number (154236522).

Almost surely, 2^612272123 is an apocalyptic number.

612272123 is a deficient number, since it is larger than the sum of its proper divisors (4673965).

612272123 is a wasteful number, since it uses less digits than its factorization.

612272123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673964.

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

The square root of 612272123 is about 24744.1331026165. The cubic root of 612272123 is about 849.1442936246.

The spelling of 612272123 in words is "six hundred twelve million, two hundred seventy-two thousand, one hundred twenty-three".