612445 has 4 divisors (see below), whose sum is σ = 734940. Its totient is φ = 489952.

The previous prime is 612439. The next prime is 612481. The reversal of 612445 is 544216.

612445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 356409 + 256036 = 597^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 612445 - 2⁷ = 612317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61240 + ... + 61249.

It is an arithmetic number, because the mean of its divisors is an integer number (183735).

2⁶¹²⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

612445 is a deficient number, since it is larger than the sum of its proper divisors (122495).

612445 is a wasteful number, since it uses less digits than its factorization.

612445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122494.

The product of its digits is 960, while the sum is 22.

The square root of 612445 is about 782.5886531250. The cubic root of 612445 is about 84.9224205643.

The spelling of 612445 in words is "six hundred twelve thousand, four hundred forty-five".