41531257 has 2 divisors, whose sum is σ = 41531258. Its totient is φ = 41531256.

The previous prime is 41531209. The next prime is 41531263. The reversal of 41531257 is 75213514.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41100921 + 430336 = 6411^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 41531257 - 2⁷ = 41531129 is a prime.

It is not a weakly prime, because it can be changed into another prime (41541257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20765628 + 20765629.

It is an arithmetic number, because the mean of its divisors is an integer number (20765629).

Almost surely, 2^41531257 is an apocalyptic number.

It is an amenable number.

41531257 is a deficient number, since it is larger than the sum of its proper divisors (1).

41531257 is an equidigital number, since it uses as much as digits as its factorization.

41531257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 28.

The square root of 41531257 is about 6444.4749204260. The cubic root of 41531257 is about 346.3046783369.

The spelling of 41531257 in words is "forty-one million, five hundred thirty-one thousand, two hundred fifty-seven".