612140173 has 8 divisors (see below), whose sum is σ = 642062592. Its totient is φ = 582921936.

The previous prime is 612140161. The next prime is 612140183. The reversal of 612140173 is 371041216.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612140173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612140153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174265 + ... + 177742.

It is an arithmetic number, because the mean of its divisors is an integer number (80257824).

Almost surely, 2^612140173 is an apocalyptic number.

It is an amenable number.

612140173 is a deficient number, since it is larger than the sum of its proper divisors (29922419).

612140173 is a wasteful number, since it uses less digits than its factorization.

612140173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352091.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 612140173 is about 24741.4666703492. The cubic root of 612140173 is about 849.0832899003.

Adding to 612140173 its reverse (371041216), we get a palindrome (983181389).

The spelling of 612140173 in words is "six hundred twelve million, one hundred forty thousand, one hundred seventy-three".