612245 has 4 divisors (see below), whose sum is σ = 734700. Its totient is φ = 489792.

The previous prime is 612229. The next prime is 612259. The reversal of 612245 is 542216.

It is a happy number.

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 96721 + 515524 = 311^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 612245 - 2⁴ = 612229 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61220 + ... + 61229.

It is an arithmetic number, because the mean of its divisors is an integer number (183675).

2⁶¹²²⁴⁵ is an apocalyptic number.

It is an amenable number.

612245 is a deficient number, since it is larger than the sum of its proper divisors (122455).

612245 is a wasteful number, since it uses less digits than its factorization.

612245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122454.

The product of its digits is 480, while the sum is 20.

The square root of 612245 is about 782.4608616410. The cubic root of 612245 is about 84.9131754712.

The spelling of 612245 in words is "six hundred twelve thousand, two hundred forty-five".