21341141 has 2 divisors, whose sum is σ = 21341142. Its totient is φ = 21341140.

The previous prime is 21341093. The next prime is 21341147. The reversal of 21341141 is 14114312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16434916 + 4906225 = 4054^2 + 2215^2 .

It is a cyclic number.

It is not a de Polignac number, because 21341141 - 2⁶ = 21341077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21341147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10670570 + 10670571.

It is an arithmetic number, because the mean of its divisors is an integer number (10670571).

Almost surely, 2^21341141 is an apocalyptic number.

It is an amenable number.

21341141 is a deficient number, since it is larger than the sum of its proper divisors (1).

21341141 is an equidigital number, since it uses as much as digits as its factorization.

21341141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 21341141 is about 4619.6472809079. The cubic root of 21341141 is about 277.3783401991.

Adding to 21341141 its reverse (14114312), we get a palindrome (35455453).

The spelling of 21341141 in words is "twenty-one million, three hundred forty-one thousand, one hundred forty-one".