40163503 has 4 divisors (see below), whose sum is σ = 42526080. Its totient is φ = 37800928.

The previous prime is 40163491. The next prime is 40163509. The reversal of 40163503 is 30536104.

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

It is not a de Polignac number, because 40163503 - 2⁵ = 40163471 is a prime.

It is a super-2 number, since 2×40163503² = 3226213946462018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40163509) 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, 1181263 + ... + 1181296.

It is an arithmetic number, because the mean of its divisors is an integer number (10631520).

Almost surely, 2^40163503 is an apocalyptic number.

40163503 is a deficient number, since it is larger than the sum of its proper divisors (2362577).

40163503 is a wasteful number, since it uses less digits than its factorization.

40163503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362576.

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

The square root of 40163503 is about 6337.4681853245. The cubic root of 40163503 is about 342.4605328633.

Adding to 40163503 its reverse (30536104), we get a palindrome (70699607).

The spelling of 40163503 in words is "forty million, one hundred sixty-three thousand, five hundred three".