2154473 has 4 divisors (see below), whose sum is σ = 2212740. Its totient is φ = 2096208.

The previous prime is 2154419. The next prime is 2154487. The reversal of 2154473 is 3744512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1708249 + 446224 = 1307^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154473 - 2¹⁰ = 2153449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29078 + ... + 29151.

It is an arithmetic number, because the mean of its divisors is an integer number (553185).

2^2154473 is an apocalyptic number.

It is an amenable number.

2154473 is a deficient number, since it is larger than the sum of its proper divisors (58267).

2154473 is an equidigital number, since it uses as much as digits as its factorization.

2154473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58266.

The product of its digits is 3360, while the sum is 26.

The square root of 2154473 is about 1467.8123177028. The cubic root of 2154473 is about 129.1557320377.

Adding to 2154473 its reverse (3744512), we get a palindrome (5898985).

The spelling of 2154473 in words is "two million, one hundred fifty-four thousand, four hundred seventy-three".