2243521515 has 8 divisors (see below), whose sum is σ = 3589634448. Its totient is φ = 1196544800.

The previous prime is 2243521513. The next prime is 2243521531. The reversal of 2243521515 is 5151253422.

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

It is not a de Polignac number, because 2243521515 - 2¹ = 2243521513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2243521513) 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 7 ways as a sum of consecutive naturals, for example, 74784036 + ... + 74784065.

It is an arithmetic number, because the mean of its divisors is an integer number (448704306).

Almost surely, 2^2243521515 is an apocalyptic number.

2243521515 is a deficient number, since it is larger than the sum of its proper divisors (1346112933).

2243521515 is a wasteful number, since it uses less digits than its factorization.

2243521515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149568109.

The product of its digits is 12000, while the sum is 30.

The square root of 2243521515 is about 47365.8264469227. The cubic root of 2243521515 is about 1309.1118263331. Note that the first 3 decimals are identical.

Adding to 2243521515 its reverse (5151253422), we get a palindrome (7394774937).

The spelling of 2243521515 in words is "two billion, two hundred forty-three million, five hundred twenty-one thousand, five hundred fifteen".