2215564743 has 12 divisors (see below), whose sum is σ = 3436386360. Its totient is φ = 1266036912.

The previous prime is 2215564721. The next prime is 2215564751. The reversal of 2215564743 is 3474655122.

It is not a de Polignac number, because 2215564743 - 2⁶ = 2215564679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215564783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7535788 + ... + 7536081.

It is an arithmetic number, because the mean of its divisors is an integer number (286365530).

Almost surely, 2^2215564743 is an apocalyptic number.

2215564743 is a deficient number, since it is larger than the sum of its proper divisors (1220821617).

2215564743 is a wasteful number, since it uses less digits than its factorization.

2215564743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15071886 (or 15071879 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 2215564743 is about 47069.7858822408. The cubic root of 2215564743 is about 1303.6514193588.

The spelling of 2215564743 in words is "two billion, two hundred fifteen million, five hundred sixty-four thousand, seven hundred forty-three".