612201617 has 4 divisors (see below), whose sum is σ = 612259620. Its totient is φ = 612143616.

The previous prime is 612201613. The next prime is 612201631. The reversal of 612201617 is 716102216.

612201617 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 92179201 + 520022416 = 9601^2 + 22804^2 .

It is a cyclic number.

It is not a de Polignac number, because 612201617 - 2² = 612201613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612201613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8192 + ... + 35937.

It is an arithmetic number, because the mean of its divisors is an integer number (153064905).

Almost surely, 2^612201617 is an apocalyptic number.

It is an amenable number.

612201617 is a deficient number, since it is larger than the sum of its proper divisors (58003).

612201617 is a wasteful number, since it uses less digits than its factorization.

612201617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58002.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 612201617 is about 24742.7083602422. The cubic root of 612201617 is about 849.1116980605. Note that the first 3 decimals are identical.

The spelling of 612201617 in words is "six hundred twelve million, two hundred one thousand, six hundred seventeen".