2261532213 has 12 divisors (see below), whose sum is σ = 3269581120. Its totient is φ = 1506338856.

The previous prime is 2261532187. The next prime is 2261532263. The reversal of 2261532213 is 3122351622.

It is a happy number.

2261532213 is a `hidden beast` number, since 2 + 2 + 615 + 32 + 2 + 13 = 666.

2261532213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2261532213 - 2⁶ = 2261532149 is a prime.

It is a super-2 number, since 2×2261532213² = 10229055900873354738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261532263) 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, 101773 + ... + 121986.

Almost surely, 2^2261532213 is an apocalyptic number.

It is an amenable number.

2261532213 is a deficient number, since it is larger than the sum of its proper divisors (1008048907).

2261532213 is a wasteful number, since it uses less digits than its factorization.

2261532213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224888 (or 224885 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2261532213 is about 47555.5697368878. The cubic root of 2261532213 is about 1312.6056200173.

Adding to 2261532213 its reverse (3122351622), we get a palindrome (5383883835).

The spelling of 2261532213 in words is "two billion, two hundred sixty-one million, five hundred thirty-two thousand, two hundred thirteen".