41491013 has 2 divisors, whose sum is σ = 41491014. Its totient is φ = 41491012.

The previous prime is 41490991. The next prime is 41491031. The reversal of 41491013 is 31019414.

Together with next prime (41491031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38167684 + 3323329 = 6178^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 41491013 - 2¹⁶ = 41425477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41491013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41491313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20745506 + 20745507.

It is an arithmetic number, because the mean of its divisors is an integer number (20745507).

Almost surely, 2^41491013 is an apocalyptic number.

It is an amenable number.

41491013 is a deficient number, since it is larger than the sum of its proper divisors (1).

41491013 is an equidigital number, since it uses as much as digits as its factorization.

41491013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 41491013 is about 6441.3517991179. The cubic root of 41491013 is about 346.1927851871.

The spelling of 41491013 in words is "forty-one million, four hundred ninety-one thousand, thirteen".