22424032145 has 4 divisors (see below), whose sum is σ = 26908838580. Its totient is φ = 17939225712.

The previous prime is 22424032129. The next prime is 22424032231. The reversal of 22424032145 is 54123042422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54123042422 = 2 ⋅27061521211.

It can be written as a sum of positive squares in 2 ways, for example, as 15235705489 + 7188326656 = 123433^2 + 84784^2 .

It is a cyclic number.

It is not a de Polignac number, because 22424032145 - 2⁴ = 22424032129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242403210 + ... + 2242403219.

It is an arithmetic number, because the mean of its divisors is an integer number (6727209645).

Almost surely, 2^22424032145 is an apocalyptic number.

It is an amenable number.

22424032145 is a deficient number, since it is larger than the sum of its proper divisors (4484806435).

22424032145 is an equidigital number, since it uses as much as digits as its factorization.

22424032145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484806434.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 22424032145 its reverse (54123042422), we get a palindrome (76547074567).

The spelling of 22424032145 in words is "twenty-two billion, four hundred twenty-four million, thirty-two thousand, one hundred forty-five".