612340172 has 12 divisors (see below), whose sum is σ = 1073008776. Its totient is φ = 305766240.

The previous prime is 612340163. The next prime is 612340199. The reversal of 612340172 is 271043216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97538 + ... + 103625.

It is an arithmetic number, because the mean of its divisors is an integer number (89417398).

Almost surely, 2^612340172 is an apocalyptic number.

It is an amenable number.

612340172 is a deficient number, since it is larger than the sum of its proper divisors (460668604).

612340172 is a wasteful number, since it uses less digits than its factorization.

612340172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201928 (or 201926 counting only the distinct ones).

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

The square root of 612340172 is about 24745.5081176362. The cubic root of 612340172 is about 849.1757509224.

Adding to 612340172 its reverse (271043216), we get a palindrome (883383388).

The spelling of 612340172 in words is "six hundred twelve million, three hundred forty thousand, one hundred seventy-two".