2145205143441 has 12 divisors (see below), whose sum is σ = 3099021045120. Its totient is φ = 1429956119160.

The previous prime is 2145205143439. The next prime is 2145205143451. The reversal of 2145205143441 is 1443415025412.

2145205143441 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 205 + 1 + 4 + 3 + 441 = 666.

It is not a de Polignac number, because 2145205143441 - 2¹ = 2145205143439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145205143396 and 2145205143405.

It is not an unprimeable number, because it can be changed into a prime (2145205143451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14978365 + ... + 15120906.

It is an arithmetic number, because the mean of its divisors is an integer number (258251753760).

Almost surely, 2^{2145205143441} is an apocalyptic number.

It is an amenable number.

2145205143441 is a deficient number, since it is larger than the sum of its proper divisors (953815901679).

2145205143441 is a wasteful number, since it uses less digits than its factorization.

2145205143441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30107196 (or 30107193 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 2145205143441 in words is "two trillion, one hundred forty-five billion, two hundred five million, one hundred forty-three thousand, four hundred forty-one".