2045131312 has 40 divisors (see below), whose sum is σ = 4530630656. Its totient is φ = 876073536.

The previous prime is 2045131307. The next prime is 2045131313. The reversal of 2045131312 is 2131315402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2045131313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442003 + ... + 446605.

Almost surely, 2^2045131312 is an apocalyptic number.

It is an amenable number.

2045131312 is an abundant number, since it is smaller than the sum of its proper divisors (2485499344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2045131312 is a wasteful number, since it uses less digits than its factorization.

2045131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8585 (or 8579 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2045131312 is about 45223.1280651836. The cubic root of 2045131312 is about 1269.3276272262.

Adding to 2045131312 its reverse (2131315402), we get a palindrome (4176446714).

The spelling of 2045131312 in words is "two billion, forty-five million, one hundred thirty-one thousand, three hundred twelve".