612266 has 4 divisors (see below), whose sum is σ = 918402. Its totient is φ = 306132.

The previous prime is 612263. The next prime is 612301. The reversal of 612266 is 662216.

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

It can be written as a sum of positive squares in only one way, i.e., 326041 + 286225 = 571^2 + 535^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612263) 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 as a sum of consecutive naturals, namely, 153065 + ... + 153068.

2⁶¹²²⁶⁶ is an apocalyptic number.

612266 is a deficient number, since it is larger than the sum of its proper divisors (306136).

612266 is a wasteful number, since it uses less digits than its factorization.

612266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306135.

The product of its digits is 864, while the sum is 23.

The square root of 612266 is about 782.4742807275. The cubic root of 612266 is about 84.9141463005.

It can be divided in two parts, 612 and 266, that added together give a palindrome (878).

The spelling of 612266 in words is "six hundred twelve thousand, two hundred sixty-six".