41515121 has 2 divisors, whose sum is σ = 41515122. Its totient is φ = 41515120.

The previous prime is 41515109. The next prime is 41515151. The reversal of 41515121 is 12151514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41422096 + 93025 = 6436^2 + 305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41515121 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 41515093 and 41515102.

It is not a weakly prime, because it can be changed into another prime (41515151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20757560 + 20757561.

It is an arithmetic number, because the mean of its divisors is an integer number (20757561).

Almost surely, 2^41515121 is an apocalyptic number.

It is an amenable number.

41515121 is a deficient number, since it is larger than the sum of its proper divisors (1).

41515121 is an equidigital number, since it uses as much as digits as its factorization.

41515121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200, while the sum is 20.

The square root of 41515121 is about 6443.2228736867. Note that the first 3 decimals coincide. The cubic root of 41515121 is about 346.2598229954.

Adding to 41515121 its reverse (12151514), we get a palindrome (53666635).

The spelling of 41515121 in words is "forty-one million, five hundred fifteen thousand, one hundred twenty-one".