605131 has 4 divisors (see below), whose sum is σ = 637000. Its totient is φ = 573264.

The previous prime is 605123. The next prime is 605147. The reversal of 605131 is 131506.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 605131 - 2³ = 605123 is a prime.

It is a super-2 number, since 2×605131² = 732367054322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605191) 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, 15906 + ... + 15943.

It is an arithmetic number, because the mean of its divisors is an integer number (159250).

2⁶⁰⁵¹³¹ is an apocalyptic number.

605131 is a deficient number, since it is larger than the sum of its proper divisors (31869).

605131 is a wasteful number, since it uses less digits than its factorization.

605131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31868.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 605131 is about 777.9016647366. The cubic root of 605131 is about 84.5830095894.

Adding to 605131 its reverse (131506), we get a palindrome (736637).

The spelling of 605131 in words is "six hundred five thousand, one hundred thirty-one".