2089581245 has 6 divisors (see below), whose sum is σ = 2507620158. Its totient is φ = 1671583224.

The previous prime is 2089581217. The next prime is 2089581289. The reversal of 2089581245 is 5421859802.

It can be written as a sum of positive squares in only one way, i.e., 1671664996 + 417916249 = 40886^2 + 20443^2 .

It is not a de Polignac number, because 2089581245 - 2⁶ = 2089581181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2089581196 and 2089581205.

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 5 ways as a sum of consecutive naturals, for example, 91994 + ... + 112436.

It is an arithmetic number, because the mean of its divisors is an integer number (417936693).

Almost surely, 2^2089581245 is an apocalyptic number.

It is an amenable number.

2089581245 is a deficient number, since it is larger than the sum of its proper divisors (418038913).

2089581245 is an frugal number, since it uses more digits than its factorization.

2089581245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40891 (or 20448 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 2089581245 is about 45711.9376640282. The cubic root of 2089581245 is about 1278.4578687539.

The spelling of 2089581245 in words is "two billion, eighty-nine million, five hundred eighty-one thousand, two hundred forty-five".