2213126453 has 6 divisors (see below), whose sum is σ = 2350968546. Its totient is φ = 2082942272.

The previous prime is 2213126449. The next prime is 2213126471. The reversal of 2213126453 is 3546213122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1573946929 + 639179524 = 39673^2 + 25282^2 .

It is not a de Polignac number, because 2213126453 - 2² = 2213126449 is a prime.

It is a super-2 number, since 2×2213126453² = 9795857393936722418, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213126423) 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, 3828650 + ... + 3829227.

It is an arithmetic number, because the mean of its divisors is an integer number (391828091).

Almost surely, 2^2213126453 is an apocalyptic number.

It is an amenable number.

2213126453 is a deficient number, since it is larger than the sum of its proper divisors (137842093).

2213126453 is an equidigital number, since it uses as much as digits as its factorization.

2213126453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657911 (or 7657894 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 2213126453 is about 47043.8779545224. The cubic root of 2213126453 is about 1303.1730090546.

Adding to 2213126453 its reverse (3546213122), we get a palindrome (5759339575).

It can be divided in two parts, 22131 and 26453, that added together give a palindrome (48584).

The spelling of 2213126453 in words is "two billion, two hundred thirteen million, one hundred twenty-six thousand, four hundred fifty-three".