606261 has 4 divisors (see below), whose sum is σ = 808352. Its totient is φ = 404172.

The previous prime is 606251. The next prime is 606299. The reversal of 606261 is 162606.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 606261 - 2¹⁰ = 605237 is a prime.

It is a D-number.

It is a Duffinian number.

606261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101041 + ... + 101046.

It is an arithmetic number, because the mean of its divisors is an integer number (202088).

2⁶⁰⁶²⁶¹ is an apocalyptic number.

It is an amenable number.

606261 is a deficient number, since it is larger than the sum of its proper divisors (202091).

606261 is a wasteful number, since it uses less digits than its factorization.

606261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202090.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 606261 is about 778.6276388621. The cubic root of 606261 is about 84.6356259480.

Adding to 606261 its reverse (162606), we get a palindrome (768867).

The spelling of 606261 in words is "six hundred six thousand, two hundred sixty-one".