611020445 has 36 divisors (see below), whose sum is σ = 872240220. Its totient is φ = 409707648.

The previous prime is 611020433. The next prime is 611020451. The reversal of 611020445 is 544020116.

It can be written as a sum of positive squares in 2 ways, for example, as 125126596 + 485893849 = 11186^2 + 22043^2 .

It is not a de Polignac number, because 611020445 - 2⁶ = 611020381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611020445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 540641 + ... + 541769.

It is an arithmetic number, because the mean of its divisors is an integer number (24228895).

Almost surely, 2^611020445 is an apocalyptic number.

It is an amenable number.

611020445 is a deficient number, since it is larger than the sum of its proper divisors (261219775).

611020445 is a wasteful number, since it uses less digits than its factorization.

611020445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 611020445 is about 24718.8277432406. The cubic root of 611020445 is about 848.5652589734.

The spelling of 611020445 in words is "six hundred eleven million, twenty thousand, four hundred forty-five".