2145144323115 has 16 divisors (see below), whose sum is σ = 3813589908000. Its totient is φ = 1144076972256.

The previous prime is 2145144323107. The next prime is 2145144323117. The reversal of 2145144323115 is 5113234415412.

2145144323115 is a `hidden beast` number, since 2 + 1 + 4 + 514 + 4 + 3 + 23 + 115 = 666.

It is not a de Polignac number, because 2145144323115 - 2³ = 2145144323107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2145144323115.

It is not an unprimeable number, because it can be changed into a prime (2145144323117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7944978840 + ... + 7944979109.

It is an arithmetic number, because the mean of its divisors is an integer number (238349369250).

Almost surely, 2^{2145144323115} is an apocalyptic number.

2145144323115 is a deficient number, since it is larger than the sum of its proper divisors (1668445584885).

2145144323115 is a wasteful number, since it uses less digits than its factorization.

2145144323115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15889957963 (or 15889957957 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 2145144323115 its reverse (5113234415412), we get a palindrome (7258378738527).

The spelling of 2145144323115 in words is "two trillion, one hundred forty-five billion, one hundred forty-four million, three hundred twenty-three thousand, one hundred fifteen".