2101142245 has 8 divisors (see below), whose sum is σ = 2521616760. Its totient is φ = 1680749760.

The previous prime is 2101142237. The next prime is 2101142257. The reversal of 2101142245 is 5422411012.

It can be written as a sum of positive squares in 4 ways, for example, as 83156161 + 2017986084 = 9119^2 + 44922^2 .

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

It is not a de Polignac number, because 2101142245 - 2³ = 2101142237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89655 + ... + 110635.

It is an arithmetic number, because the mean of its divisors is an integer number (315202095).

Almost surely, 2^2101142245 is an apocalyptic number.

It is an amenable number.

2101142245 is a deficient number, since it is larger than the sum of its proper divisors (420474515).

2101142245 is a wasteful number, since it uses less digits than its factorization.

2101142245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41015.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2101142245 is about 45838.2181699943. The cubic root of 2101142245 is about 1280.8113030862.

Adding to 2101142245 its reverse (5422411012), we get a palindrome (7523553257).

The spelling of 2101142245 in words is "two billion, one hundred one million, one hundred forty-two thousand, two hundred forty-five".