2161030 has 8 divisors (see below), whose sum is σ = 3889872. Its totient is φ = 864408.

The previous prime is 2161007. The next prime is 2161031. The reversal of 2161030 is 301612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2161030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108042 + ... + 108061.

It is an arithmetic number, because the mean of its divisors is an integer number (486234).

2^2161030 is an apocalyptic number.

2161030 is a deficient number, since it is larger than the sum of its proper divisors (1728842).

2161030 is a wasteful number, since it uses less digits than its factorization.

2161030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216110.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2161030 is about 1470.0442170221. The cubic root of 2161030 is about 129.2866250603.

Adding to 2161030 its reverse (301612), we get a palindrome (2462642).

The spelling of 2161030 in words is "two million, one hundred sixty-one thousand, thirty".