2145134113 has 4 divisors (see below), whose sum is σ = 2180300308. Its totient is φ = 2109967920.

The previous prime is 2145134099. The next prime is 2145134119. The reversal of 2145134113 is 3114315412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 365306769 + 1779827344 = 19113^2 + 42188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145134113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145134119) 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 3 ways as a sum of consecutive naturals, for example, 17583006 + ... + 17583127.

It is an arithmetic number, because the mean of its divisors is an integer number (545075077).

Almost surely, 2^2145134113 is an apocalyptic number.

It is an amenable number.

2145134113 is a deficient number, since it is larger than the sum of its proper divisors (35166195).

2145134113 is an equidigital number, since it uses as much as digits as its factorization.

2145134113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35166194.

The product of its digits is 1440, while the sum is 25.

The square root of 2145134113 is about 46315.5925472189. The cubic root of 2145134113 is about 1289.6884677278.

Adding to 2145134113 its reverse (3114315412), we get a palindrome (5259449525).

The spelling of 2145134113 in words is "two billion, one hundred forty-five million, one hundred thirty-four thousand, one hundred thirteen".