2215641345 has 8 divisors (see below), whose sum is σ = 3545026176. Its totient is φ = 1181675376.

The previous prime is 2215641293. The next prime is 2215641361. The reversal of 2215641345 is 5431465122.

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

It is not a de Polignac number, because 2215641345 - 2¹⁷ = 2215510273 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73854697 + ... + 73854726.

It is an arithmetic number, because the mean of its divisors is an integer number (443128272).

Almost surely, 2^2215641345 is an apocalyptic number.

It is an amenable number.

2215641345 is a deficient number, since it is larger than the sum of its proper divisors (1329384831).

2215641345 is a wasteful number, since it uses less digits than its factorization.

2215641345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147709431.

The product of its digits is 28800, while the sum is 33.

The square root of 2215641345 is about 47070.5995819046. The cubic root of 2215641345 is about 1303.6664435425. Note that the first 3 decimals are identical.

The spelling of 2215641345 in words is "two billion, two hundred fifteen million, six hundred forty-one thousand, three hundred forty-five".