2145342134 has 16 divisors (see below), whose sum is σ = 3470402880. Its totient is φ = 988772160.

The previous prime is 2145342083. The next prime is 2145342151. The reversal of 2145342134 is 4312435412.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2145342097 and 2145342106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38687 + ... + 76074.

It is an arithmetic number, because the mean of its divisors is an integer number (216900180).

Almost surely, 2^2145342134 is an apocalyptic number.

2145342134 is a deficient number, since it is larger than the sum of its proper divisors (1325060746).

2145342134 is a wasteful number, since it uses less digits than its factorization.

2145342134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115495.

The product of its digits is 11520, while the sum is 29.

The square root of 2145342134 is about 46317.8381835767. The cubic root of 2145342134 is about 1289.7301548826.

Adding to 2145342134 its reverse (4312435412), we get a palindrome (6457777546).

The spelling of 2145342134 in words is "two billion, one hundred forty-five million, three hundred forty-two thousand, one hundred thirty-four".