41721259 has 2 divisors, whose sum is σ = 41721260. Its totient is φ = 41721258.

The previous prime is 41721209. The next prime is 41721301. The reversal of 41721259 is 95212714.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41721259 - 2¹⁹ = 41196971 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41721259.

It is not a weakly prime, because it can be changed into another prime (41721209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20860629 + 20860630.

It is an arithmetic number, because the mean of its divisors is an integer number (20860630).

Almost surely, 2^41721259 is an apocalyptic number.

41721259 is a deficient number, since it is larger than the sum of its proper divisors (1).

41721259 is an equidigital number, since it uses as much as digits as its factorization.

41721259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 41721259 is about 6459.1995634134. The cubic root of 41721259 is about 346.8319799366.

The spelling of 41721259 in words is "forty-one million, seven hundred twenty-one thousand, two hundred fifty-nine".