609131 has 8 divisors (see below), whose sum is σ = 635664. Its totient is φ = 583200.

The previous prime is 609113. The next prime is 609143. The reversal of 609131 is 131906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609131 - 2⁶ = 609067 is a prime.

It is a super-2 number, since 2×609131² = 742081150322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656 + ... + 3818.

It is an arithmetic number, because the mean of its divisors is an integer number (79458).

2⁶⁰⁹¹³¹ is an apocalyptic number.

609131 is a deficient number, since it is larger than the sum of its proper divisors (26533).

609131 is a wasteful number, since it uses less digits than its factorization.

609131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 609131 is about 780.4684490740. The cubic root of 609131 is about 84.7689689327.

The spelling of 609131 in words is "six hundred nine thousand, one hundred thirty-one".