140342205 has 16 divisors (see below), whose sum is σ = 234311040. Its totient is φ = 71594688.

The previous prime is 140342201. The next prime is 140342207. The reversal of 140342205 is 502243041.

It is not a de Polignac number, because 140342205 - 2² = 140342201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140342201) 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 15 ways as a sum of consecutive naturals, for example, 203050 + ... + 203739.

It is an arithmetic number, because the mean of its divisors is an integer number (14644440).

Almost surely, 2^140342205 is an apocalyptic number.

140342205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140342205 is a deficient number, since it is larger than the sum of its proper divisors (93968835).

140342205 is a wasteful number, since it uses less digits than its factorization.

140342205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406820.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 140342205 is about 11846.6115408584. The cubic root of 140342205 is about 519.6721367655.

Adding to 140342205 its reverse (502243041), we get a palindrome (642585246).

The spelling of 140342205 in words is "one hundred forty million, three hundred forty-two thousand, two hundred five".