611123345 has 12 divisors (see below), whose sum is σ = 853078644. Its totient is φ = 419055840.

The previous prime is 611123321. The next prime is 611123393. The reversal of 611123345 is 543321116.

It can be written as a sum of positive squares in 2 ways, for example, as 419799121 + 191324224 = 20489^2 + 13832^2 .

It is not a de Polignac number, because 611123345 - 2²² = 606929041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1246946 + ... + 1247435.

It is an arithmetic number, because the mean of its divisors is an integer number (71089887).

Almost surely, 2^611123345 is an apocalyptic number.

It is an amenable number.

611123345 is a deficient number, since it is larger than the sum of its proper divisors (241955299).

611123345 is a wasteful number, since it uses less digits than its factorization.

611123345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494400 (or 2494393 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 611123345 is about 24720.9090650000. The cubic root of 611123345 is about 848.6128910205.

The spelling of 611123345 in words is "six hundred eleven million, one hundred twenty-three thousand, three hundred forty-five".