2236581061 has 12 divisors (see below), whose sum is σ = 2647499596. Its totient is φ = 1876849920.

The previous prime is 2236581041. The next prime is 2236581071. The reversal of 2236581061 is 1601856322.

It can be written as a sum of positive squares in 2 ways, for example, as 123432100 + 2113148961 = 11110^2 + 45969^2 .

It is not a de Polignac number, because 2236581061 - 2¹⁷ = 2236449989 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236581001) 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, 709356 + ... + 712501.

Almost surely, 2^2236581061 is an apocalyptic number.

It is an amenable number.

2236581061 is a deficient number, since it is larger than the sum of its proper divisors (410918535).

2236581061 is a wasteful number, since it uses less digits than its factorization.

2236581061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421892 (or 1421881 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2236581061 is about 47292.5053364695. The cubic root of 2236581061 is about 1307.7604960466.

The spelling of 2236581061 in words is "two billion, two hundred thirty-six million, five hundred eighty-one thousand, sixty-one".