41155421 has 2 divisors, whose sum is σ = 41155422. Its totient is φ = 41155420.

The previous prime is 41155397. The next prime is 41155427. The reversal of 41155421 is 12455114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31483321 + 9672100 = 5611^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 41155421 - 2⁶ = 41155357 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41155427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20577710 + 20577711.

It is an arithmetic number, because the mean of its divisors is an integer number (20577711).

Almost surely, 2^41155421 is an apocalyptic number.

It is an amenable number.

41155421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41155421 is an equidigital number, since it uses as much as digits as its factorization.

41155421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 23.

The square root of 41155421 is about 6415.2490988270. The cubic root of 41155421 is about 345.2568863202.

The spelling of 41155421 in words is "forty-one million, one hundred fifty-five thousand, four hundred twenty-one".