22516141 has 2 divisors, whose sum is σ = 22516142. Its totient is φ = 22516140.

The previous prime is 22516139. The next prime is 22516147. The reversal of 22516141 is 14161522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12460900 + 10055241 = 3530^2 + 3171^2 .

It is a cyclic number.

It is not a de Polignac number, because 22516141 - 2¹ = 22516139 is a prime.

Together with 22516139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22516147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11258070 + 11258071.

It is an arithmetic number, because the mean of its divisors is an integer number (11258071).

Almost surely, 2^22516141 is an apocalyptic number.

It is an amenable number.

22516141 is a deficient number, since it is larger than the sum of its proper divisors (1).

22516141 is an equidigital number, since it uses as much as digits as its factorization.

22516141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 22516141 is about 4745.1175960138. The cubic root of 22516141 is about 282.3783003614.

Adding to 22516141 its reverse (14161522), we get a palindrome (36677663).

The spelling of 22516141 in words is "twenty-two million, five hundred sixteen thousand, one hundred forty-one".