2213512736 has 12 divisors (see below), whose sum is σ = 4357853262. Its totient is φ = 1106756352.

The previous prime is 2213512729. The next prime is 2213512739. The reversal of 2213512736 is 6372153122.

It can be written as a sum of positive squares in only one way, i.e., 2143690000 + 69822736 = 46300^2 + 8356^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 69172273 = 2213512736 / (2 + 2 + 1 + 3 + 5 + 1 + 2 + 7 + 3 + 6).

It is not an unprimeable number, because it can be changed into a prime (2213512739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34586105 + ... + 34586168.

Almost surely, 2^2213512736 is an apocalyptic number.

It is an amenable number.

2213512736 is a deficient number, since it is larger than the sum of its proper divisors (2144340526).

2213512736 is an equidigital number, since it uses as much as digits as its factorization.

2213512736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69172283 (or 69172275 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 2213512736 is about 47047.9833361644. The cubic root of 2213512736 is about 1303.2488240167.

Adding to 2213512736 its reverse (6372153122), we get a palindrome (8585665858).

The spelling of 2213512736 in words is "two billion, two hundred thirteen million, five hundred twelve thousand, seven hundred thirty-six".