609145567 has 16 divisors (see below), whose sum is σ = 665344000. Its totient is φ = 555556320.

The previous prime is 609145561. The next prime is 609145583. The reversal of 609145567 is 765541906.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609145567 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 (609145561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114613 + ... + 119809.

It is an arithmetic number, because the mean of its divisors is an integer number (41584000).

Almost surely, 2^609145567 is an apocalyptic number.

609145567 is a deficient number, since it is larger than the sum of its proper divisors (56198433).

609145567 is a wasteful number, since it uses less digits than its factorization.

609145567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 609145567 is about 24680.8745185417. The cubic root of 609145567 is about 847.6964466020.

The spelling of 609145567 in words is "six hundred nine million, one hundred forty-five thousand, five hundred sixty-seven".