40513241 has 2 divisors, whose sum is σ = 40513242. Its totient is φ = 40513240.

The previous prime is 40513237. The next prime is 40513273. The reversal of 40513241 is 14231504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40513225 + 16 = 6365^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 40513241 - 2² = 40513237 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40513541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20256620 + 20256621.

It is an arithmetic number, because the mean of its divisors is an integer number (20256621).

Almost surely, 2^40513241 is an apocalyptic number.

It is an amenable number.

40513241 is a deficient number, since it is larger than the sum of its proper divisors (1).

40513241 is an equidigital number, since it uses as much as digits as its factorization.

40513241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40513241 is about 6365.0012568734. The cubic root of 40513241 is about 343.4516937778.

Adding to 40513241 its reverse (14231504), we get a palindrome (54744745).

The spelling of 40513241 in words is "forty million, five hundred thirteen thousand, two hundred forty-one".