2145434115 has 32 divisors (see below), whose sum is σ = 3941856000. Its totient is φ = 985461120.

The previous prime is 2145434113. The next prime is 2145434129. The reversal of 2145434115 is 5114345412.

It is not a de Polignac number, because 2145434115 - 2¹ = 2145434113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145434113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339040 + ... + 345309.

It is an arithmetic number, because the mean of its divisors is an integer number (123183000).

Almost surely, 2^2145434115 is an apocalyptic number.

2145434115 is a deficient number, since it is larger than the sum of its proper divisors (1796421885).

2145434115 is a wasteful number, since it uses less digits than its factorization.

2145434115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684387.

The product of its digits is 9600, while the sum is 30.

The square root of 2145434115 is about 46318.8311057177. The cubic root of 2145434115 is about 1289.7485869036.

Adding to 2145434115 its reverse (5114345412), we get a palindrome (7259779527).

The spelling of 2145434115 in words is "two billion, one hundred forty-five million, four hundred thirty-four thousand, one hundred fifteen".