40313503 has 6 divisors (see below), whose sum is σ = 42143024. Its totient is φ = 38560236.

The previous prime is 40313501. The next prime is 40313521. The reversal of 40313503 is 30531304.

It is not a de Polignac number, because 40313503 - 2¹ = 40313501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40313501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37575 + ... + 38632.

Almost surely, 2^40313503 is an apocalyptic number.

40313503 is a deficient number, since it is larger than the sum of its proper divisors (1829521).

40313503 is an equidigital number, since it uses as much as digits as its factorization.

40313503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76253 (or 76230 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 40313503 is about 6349.2915352817. The cubic root of 40313503 is about 342.8863362129.

Adding to 40313503 its reverse (30531304), we get a palindrome (70844807).

The spelling of 40313503 in words is "forty million, three hundred thirteen thousand, five hundred three".