2145741527171 has 24 divisors (see below), whose sum is σ = 2473840027680. Its totient is φ = 1856194053120.

The previous prime is 2145741527117. The next prime is 2145741527183. The reversal of 2145741527171 is 1717251475412.

It is not a de Polignac number, because 2145741527171 - 2¹⁰ = 2145741526147 is a prime.

It is a super-2 number, since 2×2145741527171² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145741527071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1460336 + ... + 2534573.

It is an arithmetic number, because the mean of its divisors is an integer number (103076667820).

Almost surely, 2^{2145741527171} is an apocalyptic number.

2145741527171 is a deficient number, since it is larger than the sum of its proper divisors (328098500509).

2145741527171 is a wasteful number, since it uses less digits than its factorization.

2145741527171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995147 (or 3995136 counting only the distinct ones).

The product of its digits is 548800, while the sum is 47.

The spelling of 2145741527171 in words is "two trillion, one hundred forty-five billion, seven hundred forty-one million, five hundred twenty-seven thousand, one hundred seventy-one".