2112873156 has 81 divisors (see below), whose sum is σ = 5490610671. Its totient is φ = 685077264.

The previous prime is 2112873151. The next prime is 2112873181. The reversal of 2112873156 is 6513782112.

The square root of 2112873156 is 45966.

It is a perfect power (a square), and thus also a powerful number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2112873156.

It is not an unprimeable number, because it can be changed into a prime (2112873151) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12962331 + ... + 12962493.

Almost surely, 2^2112873156 is an apocalyptic number.

2112873156 is the 45966-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112873156

2112873156 is an abundant number, since it is smaller than the sum of its proper divisors (3377737515).

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

2112873156 is a wasteful number, since it uses less digits than its factorization.

2112873156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 215 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The cubic root of 2112873156 is about 1283.1905181079.

Multiplying 2112873156 by its sum of digits (36), we get a square (76063433616 = 275796²).

2112873156 divided by its sum of digits (36) gives a square (58690921 = 7661²).

The spelling of 2112873156 in words is "two billion, one hundred twelve million, eight hundred seventy-three thousand, one hundred fifty-six".