40503163 has 4 divisors (see below), whose sum is σ = 42885720. Its totient is φ = 38120608.

The previous prime is 40503149. The next prime is 40503167. The reversal of 40503163 is 36130504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40503163 - 2²⁵ = 6948731 is a prime.

It is a super-3 number, since 3×40503163³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40503167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191253 + ... + 1191286.

It is an arithmetic number, because the mean of its divisors is an integer number (10721430).

Almost surely, 2^40503163 is an apocalyptic number.

40503163 is a deficient number, since it is larger than the sum of its proper divisors (2382557).

40503163 is a wasteful number, since it uses less digits than its factorization.

40503163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382556.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 40503163 is about 6364.2095345769. The cubic root of 40503163 is about 343.4232126102.

Adding to 40503163 its reverse (36130504), we get a palindrome (76633667).

The spelling of 40503163 in words is "forty million, five hundred three thousand, one hundred sixty-three".