2161192 has 32 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 956800.

The previous prime is 2161189. The next prime is 2161199. The reversal of 2161192 is 2911612.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2161199) 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, 3309 + ... + 3907.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

2^2161192 is an apocalyptic number.

2161192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2161192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268000).

2161192 is an abundant number, since it is smaller than the sum of its proper divisors (2374808).

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

2161192 is a wasteful number, since it uses less digits than its factorization.

2161192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 653 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

The square root of 2161192 is about 1470.0993163729. The cubic root of 2161192 is about 129.2898556046.

The spelling of 2161192 in words is "two million, one hundred sixty-one thousand, one hundred ninety-two".