2145141056 has 28 divisors (see below), whose sum is σ = 4507164468. Its totient is φ = 1009477632.

The previous prime is 2145140999. The next prime is 2145141071. The reversal of 2145141056 is 6501415412.

It can be written as a sum of positive squares in 2 ways, for example, as 1943046400 + 202094656 = 44080^2 + 14216^2 .

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, 984731 + ... + 986906.

Almost surely, 2^2145141056 is an apocalyptic number.

It is an amenable number.

2145141056 is an abundant number, since it is smaller than the sum of its proper divisors (2362023412).

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

2145141056 is a wasteful number, since it uses less digits than its factorization.

2145141056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971666 (or 1971656 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2145141056 is about 46315.6675003179. The cubic root of 2145141056 is about 1289.6898591400.

Adding to 2145141056 its reverse (6501415412), we get a palindrome (8646556468).

The spelling of 2145141056 in words is "two billion, one hundred forty-five million, one hundred forty-one thousand, fifty-six".