3261163144 has 16 divisors (see below), whose sum is σ = 6175223820. Its totient is φ = 1614436800.

The previous prime is 3261163117. The next prime is 3261163153. The reversal of 3261163144 is 4413611623.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3117882244 + 143280900 = 55838^2 + 11970^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017239 + ... + 2018854.

Almost surely, 2^3261163144 is an apocalyptic number.

It is an amenable number.

3261163144 is a deficient number, since it is larger than the sum of its proper divisors (2914060676).

3261163144 is a wasteful number, since it uses less digits than its factorization.

3261163144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036200 (or 4036196 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 3261163144 is about 57106.5945754078. The cubic root of 3261163144 is about 1482.9420330920.

Adding to 3261163144 its reverse (4413611623), we get a palindrome (7674774767).

The spelling of 3261163144 in words is "three billion, two hundred sixty-one million, one hundred sixty-three thousand, one hundred forty-four".