22461541 has 2 divisors, whose sum is σ = 22461542. Its totient is φ = 22461540.

The previous prime is 22461529. The next prime is 22461581. The reversal of 22461541 is 14516422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15570916 + 6890625 = 3946^2 + 2625^2 .

It is a cyclic number.

It is not a de Polignac number, because 22461541 - 2¹³ = 22453349 is a prime.

It is equal to p_1416373 and since 22461541 and 1416373 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22461511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11230770 + 11230771.

It is an arithmetic number, because the mean of its divisors is an integer number (11230771).

Almost surely, 2^22461541 is an apocalyptic number.

It is an amenable number.

22461541 is a deficient number, since it is larger than the sum of its proper divisors (1).

22461541 is an equidigital number, since it uses as much as digits as its factorization.

22461541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 22461541 is about 4739.3608218831. The cubic root of 22461541 is about 282.1498666878.

Adding to 22461541 its reverse (14516422), we get a palindrome (36977963).

The spelling of 22461541 in words is "twenty-two million, four hundred sixty-one thousand, five hundred forty-one".