2163522136 has 32 divisors (see below), whose sum is σ = 4365658080. Its totient is φ = 1001433600.

The previous prime is 2163522133. The next prime is 2163522149. The reversal of 2163522136 is 6312253612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2163522098 and 2163522107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163522133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122100 + ... + 138691.

It is an arithmetic number, because the mean of its divisors is an integer number (136426815).

Almost surely, 2^2163522136 is an apocalyptic number.

It is an amenable number.

2163522136 is an abundant number, since it is smaller than the sum of its proper divisors (2202135944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2163522136 is a wasteful number, since it uses less digits than its factorization.

2163522136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260875 (or 260871 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 2163522136 is about 46513.6768703572. The cubic root of 2163522136 is about 1293.3630446877.

Adding to 2163522136 its reverse (6312253612), we get a palindrome (8475775748).

The spelling of 2163522136 in words is "two billion, one hundred sixty-three million, five hundred twenty-two thousand, one hundred thirty-six".