2126453 has 6 divisors (see below), whose sum is σ = 2473686. Its totient is φ = 1822632.

The previous prime is 2126447. The next prime is 2126459. The reversal of 2126453 is 3546212.

It is an interprime number because it is at equal distance from previous prime (2126447) and next prime (2126459).

It can be written as a sum of positive squares in only one way, i.e., 2079364 + 47089 = 1442^2 + 217^2 .

It is not a de Polignac number, because 2126453 - 2¹⁰ = 2125429 is a prime.

It is a super-2 number, since 2×2126453² = 9043604722418, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 2²¹ + 6⁴ + 4 + 5³ + 3⁹ .

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21650 + ... + 21747.

It is an arithmetic number, because the mean of its divisors is an integer number (412281).

2^2126453 is an apocalyptic number.

It is an amenable number.

2126453 is a deficient number, since it is larger than the sum of its proper divisors (347233).

2126453 is an equidigital number, since it uses as much as digits as its factorization.

2126453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43411 (or 43404 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 2126453 is about 1458.2362634361. The cubic root of 2126453 is about 128.5933753834.

The spelling of 2126453 in words is "two million, one hundred twenty-six thousand, four hundred fifty-three".