140023403 has 8 divisors (see below), whose sum is σ = 153640368. Its totient is φ = 126813024.

The previous prime is 140023399. The next prime is 140023409. The reversal of 140023403 is 304320041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140023403 - 2² = 140023399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140023409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100925 + ... + 102302.

It is an arithmetic number, because the mean of its divisors is an integer number (19205046).

Almost surely, 2^140023403 is an apocalyptic number.

140023403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140023403 is a deficient number, since it is larger than the sum of its proper divisors (13616965).

140023403 is a wasteful number, since it uses less digits than its factorization.

140023403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203293.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 140023403 is about 11833.1484821243. The cubic root of 140023403 is about 519.2783418920.

Adding to 140023403 its reverse (304320041), we get a palindrome (444343444).

The spelling of 140023403 in words is "one hundred forty million, twenty-three thousand, four hundred three".