2012159394 has 160 divisors (see below), whose sum is σ = 5542225920. Its totient is φ = 532788192.

The previous prime is 2012159333. The next prime is 2012159411. The reversal of 2012159394 is 4939512102.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1011669 + ... + 1013655.

It is an arithmetic number, because the mean of its divisors is an integer number (34638912).

Almost surely, 2^2012159394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012159394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2771112960).

2012159394 is an abundant number, since it is smaller than the sum of its proper divisors (3530066526).

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

2012159394 is a wasteful number, since it uses less digits than its factorization.

2012159394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2012159394 is about 44857.0997056207. The cubic root of 2012159394 is about 1262.4692055881.

The spelling of 2012159394 in words is "two billion, twelve million, one hundred fifty-nine thousand, three hundred ninety-four".