2131277652 has 288 divisors, whose sum is σ = 6809886720. Its totient is φ = 548363520.

The previous prime is 2131277623. The next prime is 2131277717. The reversal of 2131277652 is 2567721312.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12319438 + ... + 12319610.

It is an arithmetic number, because the mean of its divisors is an integer number (23645440).

Almost surely, 2^2131277652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131277652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3404943360).

2131277652 is an abundant number, since it is smaller than the sum of its proper divisors (4678609068).

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

2131277652 is a wasteful number, since it uses less digits than its factorization.

2131277652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 318 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 2131277652 is about 46165.7627685279. The cubic root of 2131277652 is about 1286.9055594022.

Adding to 2131277652 its reverse (2567721312), we get a palindrome (4698998964).

The spelling of 2131277652 in words is "two billion, one hundred thirty-one million, two hundred seventy-seven thousand, six hundred fifty-two".