609041191 has 4 divisors (see below), whose sum is σ = 664408584. Its totient is φ = 553673800.

The previous prime is 609041131. The next prime is 609041197. The reversal of 609041191 is 191140906.

609041191 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609041191 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 (609041197) 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, 27683680 + ... + 27683701.

It is an arithmetic number, because the mean of its divisors is an integer number (166102146).

Almost surely, 2^609041191 is an apocalyptic number.

609041191 is a deficient number, since it is larger than the sum of its proper divisors (55367393).

609041191 is a wasteful number, since it uses less digits than its factorization.

609041191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55367392.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 609041191 is about 24678.7599161708. The cubic root of 609041191 is about 847.6480267480.

The spelling of 609041191 in words is "six hundred nine million, forty-one thousand, one hundred ninety-one".