22131453 has 4 divisors (see below), whose sum is σ = 29508608. Its totient is φ = 14754300.

The previous prime is 22131443. The next prime is 22131463. The reversal of 22131453 is 35413122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22131443) and next prime (22131463).

It is not a de Polignac number, because 22131453 - 2¹³ = 22123261 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 (22131443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3688573 + ... + 3688578.

It is an arithmetic number, because the mean of its divisors is an integer number (7377152).

Almost surely, 2^22131453 is an apocalyptic number.

It is an amenable number.

22131453 is a deficient number, since it is larger than the sum of its proper divisors (7377155).

22131453 is an equidigital number, since it uses as much as digits as its factorization.

22131453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377154.

The product of its digits is 720, while the sum is 21.

The square root of 22131453 is about 4704.4078267089. The cubic root of 22131453 is about 280.7609107648.

Adding to 22131453 its reverse (35413122), we get a palindrome (57544575).

The spelling of 22131453 in words is "twenty-two million, one hundred thirty-one thousand, four hundred fifty-three".