40140503 has 4 divisors (see below), whose sum is σ = 43228248. Its totient is φ = 37052760.

The previous prime is 40140493. The next prime is 40140511. The reversal of 40140503 is 30504104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40140503 is a prime.

It is a super-2 number, since 2×40140503² = 3222519962186018, 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 (40140203) 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, 1543853 + ... + 1543878.

It is an arithmetic number, because the mean of its divisors is an integer number (10807062).

Almost surely, 2^40140503 is an apocalyptic number.

40140503 is a deficient number, since it is larger than the sum of its proper divisors (3087745).

40140503 is a wasteful number, since it uses less digits than its factorization.

40140503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087744.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40140503 is about 6335.6533206923. The cubic root of 40140503 is about 342.3951493211.

Adding to 40140503 its reverse (30504104), we get a palindrome (70644607).

It can be divided in two parts, 401 and 40503, that added together give a palindrome (40904).

The spelling of 40140503 in words is "forty million, one hundred forty thousand, five hundred three".