40317503 has 2 divisors, whose sum is σ = 40317504. Its totient is φ = 40317502.

The previous prime is 40317481. The next prime is 40317509. The reversal of 40317503 is 30571304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40317503 - 2¹² = 40313407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40317509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20158751 + 20158752.

It is an arithmetic number, because the mean of its divisors is an integer number (20158752).

Almost surely, 2^40317503 is an apocalyptic number.

40317503 is a deficient number, since it is larger than the sum of its proper divisors (1).

40317503 is an equidigital number, since it uses as much as digits as its factorization.

40317503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 40317503 is about 6349.6065232422. The cubic root of 40317503 is about 342.8976764991.

Adding to 40317503 its reverse (30571304), we get a palindrome (70888807).

The spelling of 40317503 in words is "forty million, three hundred seventeen thousand, five hundred three".