2161453 has 8 divisors (see below), whose sum is σ = 2505600. Its totient is φ = 1826160.

The previous prime is 2161447. The next prime is 2161469. The reversal of 2161453 is 3541612.

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

It is not a de Polignac number, because 2161453 - 2¹⁷ = 2030381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161433) 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, 1678 + ... + 2671.

It is an arithmetic number, because the mean of its divisors is an integer number (313200).

2^2161453 is an apocalyptic number.

It is an amenable number.

2161453 is a deficient number, since it is larger than the sum of its proper divisors (344147).

2161453 is an equidigital number, since it uses as much as digits as its factorization.

2161453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427.

The product of its digits is 720, while the sum is 22.

The square root of 2161453 is about 1470.1880832057. The cubic root of 2161453 is about 129.2950600310.

The spelling of 2161453 in words is "two million, one hundred sixty-one thousand, four hundred fifty-three".