612306005 has 4 divisors (see below), whose sum is σ = 734767212. Its totient is φ = 489844800.

The previous prime is 612305999. The next prime is 612306061. The reversal of 612306005 is 500603216.

612306005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172607044 + 439698961 = 13138^2 + 20969^2 .

It is not a de Polignac number, because 612306005 - 2¹⁰ = 612304981 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 61230596 + ... + 61230605.

It is an arithmetic number, because the mean of its divisors is an integer number (183691803).

Almost surely, 2^612306005 is an apocalyptic number.

It is an amenable number.

612306005 is a deficient number, since it is larger than the sum of its proper divisors (122461207).

612306005 is a wasteful number, since it uses less digits than its factorization.

612306005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122461206.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 612306005 is about 24744.8177402866. The cubic root of 612306005 is about 849.1599566908.

The spelling of 612306005 in words is "six hundred twelve million, three hundred six thousand, five".