609361567 has 4 divisors (see below), whose sum is σ = 609423280. Its totient is φ = 609299856.

The previous prime is 609361553. The next prime is 609361573. The reversal of 609361567 is 765163906.

609361567 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 is a 4-Lehmer number, since φ(609361567) divides (609361567-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 609361567 - 2²³ = 600972959 is a prime.

It is a deceptive number, since it divides R_609361566.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609361667) 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, 12342 + ... + 37027.

It is an arithmetic number, because the mean of its divisors is an integer number (152355820).

It is a Poulet number, since it divides 2^609361566-1.

Almost surely, 2^609361567 is an apocalyptic number.

609361567 is the 12343-rd decagonal number.

609361567 is a deficient number, since it is larger than the sum of its proper divisors (61713).

609361567 is a wasteful number, since it uses less digits than its factorization.

609361567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61712.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 609361567 is about 24685.2499886066. The cubic root of 609361567 is about 847.7966310813.

The spelling of 609361567 in words is "six hundred nine million, three hundred sixty-one thousand, five hundred sixty-seven".