41217145 has 4 divisors (see below), whose sum is σ = 49460580. Its totient is φ = 32973712.

The previous prime is 41217131. The next prime is 41217157. The reversal of 41217145 is 54171214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23736384 + 17480761 = 4872^2 + 4181^2 .

It is a cyclic number.

It is not a de Polignac number, because 41217145 - 2⁷ = 41217017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4121710 + ... + 4121719.

It is an arithmetic number, because the mean of its divisors is an integer number (12365145).

Almost surely, 2^41217145 is an apocalyptic number.

It is an amenable number.

41217145 is a deficient number, since it is larger than the sum of its proper divisors (8243435).

41217145 is an equidigital number, since it uses as much as digits as its factorization.

41217145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243434.

The product of its digits is 1120, while the sum is 25.

The square root of 41217145 is about 6420.0580215447. The cubic root of 41217145 is about 345.4294030115.

Adding to 41217145 its reverse (54171214), we get a palindrome (95388359).

The spelling of 41217145 in words is "forty-one million, two hundred seventeen thousand, one hundred forty-five".