2175072245 has 6 divisors (see below), whose sum is σ = 2610211842. Its totient is φ = 1739974368.

The previous prime is 2175072241. The next prime is 2175072271. The reversal of 2175072245 is 5422705712.

It can be written as a sum of positive squares in 3 ways, for example, as 1448715844 + 726356401 = 38062^2 + 26951^2 .

It is not a de Polignac number, because 2175072245 - 2² = 2175072241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175072241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93857 + ... + 114713.

It is an arithmetic number, because the mean of its divisors is an integer number (435035307).

Almost surely, 2^2175072245 is an apocalyptic number.

It is an amenable number.

2175072245 is a deficient number, since it is larger than the sum of its proper divisors (435139597).

2175072245 is an frugal number, since it uses more digits than its factorization.

2175072245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41719 (or 20862 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 2175072245 is about 46637.6698067131. The cubic root of 2175072245 is about 1295.6605297452.

Adding to 2175072245 its reverse (5422705712), we get a palindrome (7597777957).

The spelling of 2175072245 in words is "two billion, one hundred seventy-five million, seventy-two thousand, two hundred forty-five".