140243403 has 4 divisors (see below), whose sum is σ = 186991208. Its totient is φ = 93495600.

The previous prime is 140243401. The next prime is 140243417. The reversal of 140243403 is 304342041.

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

It is not a de Polignac number, because 140243403 - 2¹ = 140243401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140243403.

It is not an unprimeable number, because it can be changed into a prime (140243401) 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, 23373898 + ... + 23373903.

It is an arithmetic number, because the mean of its divisors is an integer number (46747802).

Almost surely, 2^140243403 is an apocalyptic number.

140243403 is a deficient number, since it is larger than the sum of its proper divisors (46747805).

140243403 is an equidigital number, since it uses as much as digits as its factorization.

140243403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46747804.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 140243403 is about 11842.4407534933. The cubic root of 140243403 is about 519.5501570655.

Adding to 140243403 its reverse (304342041), we get a palindrome (444585444).

The spelling of 140243403 in words is "one hundred forty million, two hundred forty-three thousand, four hundred three".