22531241 has 2 divisors, whose sum is σ = 22531242. Its totient is φ = 22531240.

The previous prime is 22531217. The next prime is 22531253. The reversal of 22531241 is 14213522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 1371241 = 4600^2 + 1171^2 .

It is a cyclic number.

It is not a de Polignac number, because 22531241 - 2⁶ = 22531177 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22531291) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265620 + 11265621.

It is an arithmetic number, because the mean of its divisors is an integer number (11265621).

Almost surely, 2^22531241 is an apocalyptic number.

It is an amenable number.

22531241 is a deficient number, since it is larger than the sum of its proper divisors (1).

22531241 is an equidigital number, since it uses as much as digits as its factorization.

22531241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 22531241 is about 4746.7084384866. The cubic root of 22531241 is about 282.4414100438.

Adding to 22531241 its reverse (14213522), we get a palindrome (36744763).

The spelling of 22531241 in words is "twenty-two million, five hundred thirty-one thousand, two hundred forty-one".