2245523121 has 16 divisors (see below), whose sum is σ = 3327667200. Its totient is φ = 1496580624.

The previous prime is 2245523083. The next prime is 2245523123. The reversal of 2245523121 is 1213255422.

It is not a de Polignac number, because 2245523121 - 2¹⁵ = 2245490353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2245523123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 102295 + ... + 122291.

It is an arithmetic number, because the mean of its divisors is an integer number (207979200).

Almost surely, 2^2245523121 is an apocalyptic number.

It is an amenable number.

2245523121 is a deficient number, since it is larger than the sum of its proper divisors (1082144079).

2245523121 is a wasteful number, since it uses less digits than its factorization.

2245523121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24165 (or 24159 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2245523121 is about 47386.9509569881. The cubic root of 2245523121 is about 1309.5010280404.

Adding to 2245523121 its reverse (1213255422), we get a palindrome (3458778543).

The spelling of 2245523121 in words is "two billion, two hundred forty-five million, five hundred twenty-three thousand, one hundred twenty-one".