2136981312 has 112 divisors (see below), whose sum is σ = 6293998080. Its totient is φ = 711005184.

The previous prime is 2136981293. The next prime is 2136981317. The reversal of 2136981312 is 2131896312.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136981317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490548 + ... + 1491980.

Almost surely, 2^2136981312 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 2136981312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3146999040).

2136981312 is an abundant number, since it is smaller than the sum of its proper divisors (4157016768).

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

2136981312 is a wasteful number, since it uses less digits than its factorization.

2136981312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317 (or 2301 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 2136981312 is about 46227.4951949595. The cubic root of 2136981312 is about 1288.0525292672.

The spelling of 2136981312 in words is "two billion, one hundred thirty-six million, nine hundred eighty-one thousand, three hundred twelve".