2181053 has 8 divisors (see below), whose sum is σ = 2535360. Its totient is φ = 1837440.

The previous prime is 2181031. The next prime is 2181071. The reversal of 2181053 is 3501812.

2181053 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2181053 - 2⁸ = 2180797 is a prime.

It is a Duffinian number.

2181053 is strictly pandigital in base 8.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2181073) 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, 2228 + ... + 3053.

It is an arithmetic number, because the mean of its divisors is an integer number (316920).

2^2181053 is an apocalyptic number.

It is an amenable number.

2181053 is a deficient number, since it is larger than the sum of its proper divisors (354307).

2181053 is an equidigital number, since it uses as much as digits as its factorization.

2181053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5347.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2181053 is about 1476.8388537684. The cubic root of 2181053 is about 129.6846994024.

Adding to 2181053 its reverse (3501812), we get a palindrome (5682865).

The spelling of 2181053 in words is "two million, one hundred eighty-one thousand, fifty-three".