612116573 has 4 divisors (see below), whose sum is σ = 612204060. Its totient is φ = 612029088.

The previous prime is 612116551. The next prime is 612116591. The reversal of 612116573 is 375611216.

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 305096089 + 307020484 = 17467^2 + 17522^2 .

It is a cyclic number.

It is not a de Polignac number, because 612116573 - 2⁶ = 612116509 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 (612116873) 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, 32240 + ... + 47577.

It is an arithmetic number, because the mean of its divisors is an integer number (153051015).

Almost surely, 2^612116573 is an apocalyptic number.

It is an amenable number.

612116573 is a deficient number, since it is larger than the sum of its proper divisors (87487).

612116573 is an equidigital number, since it uses as much as digits as its factorization.

612116573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87486.

The product of its digits is 7560, while the sum is 32.

The square root of 612116573 is about 24740.9897336384. The cubic root of 612116573 is about 849.0723781168.

Adding to 612116573 its reverse (375611216), we get a palindrome (987727789).

The spelling of 612116573 in words is "six hundred twelve million, one hundred sixteen thousand, five hundred seventy-three".