2161302 has 48 divisors (see below), whose sum is σ = 5139120. Its totient is φ = 601920.

The previous prime is 2161301. The next prime is 2161303. The reversal of 2161302 is 2031612.

2161302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2161301) and next prime (2161303).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9324 + ... + 9552.

It is an arithmetic number, because the mean of its divisors is an integer number (107065).

2^2161302 is an apocalyptic number.

2161302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2161302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2569560).

2161302 is an abundant number, since it is smaller than the sum of its proper divisors (2977818).

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

2161302 is a wasteful number, since it uses less digits than its factorization.

2161302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2161302 is about 1470.1367283352. The cubic root of 2161302 is about 129.2920490921.

Adding to 2161302 its reverse (2031612), we get a palindrome (4192914).

The spelling of 2161302 in words is "two million, one hundred sixty-one thousand, three hundred two".