2145205152243 has 6 divisors (see below), whose sum is σ = 3098629664364. Its totient is φ = 1430136768156.

The previous prime is 2145205152241. The next prime is 2145205152271. The reversal of 2145205152243 is 3422515025412.

2145205152243 is a `hidden beast` number, since 2 + 1 + 45 + 2 + 0 + 51 + 522 + 43 = 666.

It is not a de Polignac number, because 2145205152243 - 2¹ = 2145205152241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145205152198 and 2145205152207.

It is not an unprimeable number, because it can be changed into a prime (2145205152241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119178064005 + ... + 119178064022.

It is an arithmetic number, because the mean of its divisors is an integer number (516438277394).

Almost surely, 2^{2145205152243} is an apocalyptic number.

2145205152243 is a deficient number, since it is larger than the sum of its proper divisors (953424512121).

2145205152243 is a wasteful number, since it uses less digits than its factorization.

2145205152243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238356128033 (or 238356128030 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 2145205152243 in words is "two trillion, one hundred forty-five billion, two hundred five million, one hundred fifty-two thousand, two hundred forty-three".