605149 has 4 divisors (see below), whose sum is σ = 640764. Its totient is φ = 569536.

The previous prime is 605147. The next prime is 605167. The reversal of 605149 is 941506.

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

It can be written as a sum of positive squares in 2 ways, for example, as 257049 + 348100 = 507^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 605149 - 2¹ = 605147 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17782 + ... + 17815.

It is an arithmetic number, because the mean of its divisors is an integer number (160191).

2⁶⁰⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

605149 is a deficient number, since it is larger than the sum of its proper divisors (35615).

605149 is a wasteful number, since it uses less digits than its factorization.

605149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35614.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 605149 is about 777.9132342363. The cubic root of 605149 is about 84.5838482393.

The spelling of 605149 in words is "six hundred five thousand, one hundred forty-nine".