22471453 has 4 divisors (see below), whose sum is σ = 22555260. Its totient is φ = 22387648.

The previous prime is 22471451. The next prime is 22471457. The reversal of 22471453 is 35417422.

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 13816089 + 8655364 = 3717^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 22471453 - 2¹ = 22471451 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 (22471451) 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, 41500 + ... + 42037.

It is an arithmetic number, because the mean of its divisors is an integer number (5638815).

Almost surely, 2^22471453 is an apocalyptic number.

It is an amenable number.

22471453 is a deficient number, since it is larger than the sum of its proper divisors (83807).

22471453 is an equidigital number, since it uses as much as digits as its factorization.

22471453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83806.

The product of its digits is 6720, while the sum is 28.

The square root of 22471453 is about 4740.4064171756. The cubic root of 22471453 is about 282.1913636656.

Adding to 22471453 its reverse (35417422), we get a palindrome (57888875).

The spelling of 22471453 in words is "twenty-two million, four hundred seventy-one thousand, four hundred fifty-three".