2215513443 has 24 divisors (see below), whose sum is σ = 3489531840. Its totient is φ = 1239444960.

The previous prime is 2215513429. The next prime is 2215513451. The reversal of 2215513443 is 3443155122.

It is not a de Polignac number, because 2215513443 - 2⁶ = 2215513379 is a prime.

It is a super-2 number, since 2×2215513443² = 9816999632227428498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2215513443.

It is not an unprimeable number, because it can be changed into a prime (2215513403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193053 + ... + 204206.

It is an arithmetic number, because the mean of its divisors is an integer number (145397160).

Almost surely, 2^2215513443 is an apocalyptic number.

2215513443 is a deficient number, since it is larger than the sum of its proper divisors (1274018397).

2215513443 is a wasteful number, since it uses less digits than its factorization.

2215513443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397299 (or 397286 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 2215513443 is about 47069.2409435291. The cubic root of 2215513443 is about 1303.6413575398.

Adding to 2215513443 its reverse (3443155122), we get a palindrome (5658668565).

The spelling of 2215513443 in words is "two billion, two hundred fifteen million, five hundred thirteen thousand, four hundred forty-three".