612425173 has 2 divisors, whose sum is σ = 612425174. Its totient is φ = 612425172.

The previous prime is 612425171. The next prime is 612425183. The reversal of 612425173 is 371524216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444282084 + 168143089 = 21078^2 + 12967^2 .

It is a cyclic number.

It is not a de Polignac number, because 612425173 - 2¹ = 612425171 is a prime.

Together with 612425171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612425171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306212586 + 306212587.

It is an arithmetic number, because the mean of its divisors is an integer number (306212587).

Almost surely, 2^612425173 is an apocalyptic number.

It is an amenable number.

612425173 is a deficient number, since it is larger than the sum of its proper divisors (1).

612425173 is an equidigital number, since it uses as much as digits as its factorization.

612425173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 612425173 is about 24747.2255616665. The cubic root of 612425173 is about 849.2150414190.

Adding to 612425173 its reverse (371524216), we get a palindrome (983949389).

The spelling of 612425173 in words is "six hundred twelve million, four hundred twenty-five thousand, one hundred seventy-three".