2205231145 has 24 divisors (see below), whose sum is σ = 2990108736. Its totient is φ = 1557661248.

The previous prime is 2205231131. The next prime is 2205231163. The reversal of 2205231145 is 5411325022.

It is not a de Polignac number, because 2205231145 - 2⁵ = 2205231113 is a prime.

It is a super-2 number, since 2×2205231145² = 9726088805756022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37299 + ... + 76168.

It is an arithmetic number, because the mean of its divisors is an integer number (124587864).

Almost surely, 2^2205231145 is an apocalyptic number.

It is an amenable number.

2205231145 is a deficient number, since it is larger than the sum of its proper divisors (784877591).

2205231145 is a wasteful number, since it uses less digits than its factorization.

2205231145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113521 (or 113508 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2205231145 is about 46959.8886817250. Note that the first 3 decimals coincide. The cubic root of 2205231145 is about 1301.6214767078.

Adding to 2205231145 its reverse (5411325022), we get a palindrome (7616556167).

The spelling of 2205231145 in words is "two billion, two hundred five million, two hundred thirty-one thousand, one hundred forty-five".