140013503 has 4 divisors (see below), whose sum is σ = 160015440. Its totient is φ = 120011568.

The previous prime is 140013499. The next prime is 140013509. The reversal of 140013503 is 305310041.

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 140013503 - 2² = 140013499 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 (140013509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10000958 + ... + 10000971.

It is an arithmetic number, because the mean of its divisors is an integer number (40003860).

Almost surely, 2^140013503 is an apocalyptic number.

140013503 is a deficient number, since it is larger than the sum of its proper divisors (20001937).

140013503 is an equidigital number, since it uses as much as digits as its factorization.

140013503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20001936.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 140013503 is about 11832.7301583362. The cubic root of 140013503 is about 519.2661035170.

Adding to 140013503 its reverse (305310041), we get a palindrome (445323544).

The spelling of 140013503 in words is "one hundred forty million, thirteen thousand, five hundred three".