3111444445 has 4 divisors (see below), whose sum is σ = 3733733340. Its totient is φ = 2489155552.

The previous prime is 3111444437. The next prime is 3111444451. The reversal of 3111444445 is 5444441113.

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 1579426564 + 1532017881 = 39742^2 + 39141^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111444445 - 2³ = 3111444437 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, 311144440 + ... + 311144449.

It is an arithmetic number, because the mean of its divisors is an integer number (933433335).

Almost surely, 2^3111444445 is an apocalyptic number.

It is an amenable number.

3111444445 is a deficient number, since it is larger than the sum of its proper divisors (622288895).

3111444445 is an equidigital number, since it uses as much as digits as its factorization.

3111444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622288894.

The product of its digits is 15360, while the sum is 31.

The square root of 3111444445 is about 55780.3230987415. The cubic root of 3111444445 is about 1459.8918486535.

Adding to 3111444445 its reverse (5444441113), we get a palindrome (8555885558).

The spelling of 3111444445 in words is "three billion, one hundred eleven million, four hundred forty-four thousand, four hundred forty-five".