2145532512 has 24 divisors (see below), whose sum is σ = 5632023096. Its totient is φ = 715177472.

The previous prime is 2145532471. The next prime is 2145532531. The reversal of 2145532512 is 2152355412.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2145532512.

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 3 ways as a sum of consecutive naturals, for example, 11174553 + ... + 11174744.

It is an arithmetic number, because the mean of its divisors is an integer number (234667629).

Almost surely, 2^2145532512 is an apocalyptic number.

It is an amenable number.

2145532512 is an abundant number, since it is smaller than the sum of its proper divisors (3486490584).

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

2145532512 is a wasteful number, since it uses less digits than its factorization.

2145532512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22349310 (or 22349302 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 2145532512 is about 46319.8932641257. The cubic root of 2145532512 is about 1289.7683040401.

Adding to 2145532512 its reverse (2152355412), we get a palindrome (4297887924).

The spelling of 2145532512 in words is "two billion, one hundred forty-five million, five hundred thirty-two thousand, five hundred twelve".