2145522513 has 8 divisors (see below), whose sum is σ = 2867493376. Its totient is φ = 1426950000.

The previous prime is 2145522481. The next prime is 2145522529. The reversal of 2145522513 is 3152255412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2145522513 - 2⁵ = 2145522481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2145522563) 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 7 ways as a sum of consecutive naturals, for example, 848113 + ... + 850638.

It is an arithmetic number, because the mean of its divisors is an integer number (358436672).

Almost surely, 2^2145522513 is an apocalyptic number.

It is an amenable number.

2145522513 is a deficient number, since it is larger than the sum of its proper divisors (721970863).

2145522513 is a wasteful number, since it uses less digits than its factorization.

2145522513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699175.

The product of its digits is 12000, while the sum is 30.

The square root of 2145522513 is about 46319.7853298134. The cubic root of 2145522513 is about 1289.7663004328.

Adding to 2145522513 its reverse (3152255412), we get a palindrome (5297777925).

The spelling of 2145522513 in words is "two billion, one hundred forty-five million, five hundred twenty-two thousand, five hundred thirteen".