140131205 has 16 divisors (see below), whose sum is σ = 174991104. Its totient is φ = 107640000.

The previous prime is 140131181. The next prime is 140131207. The reversal of 140131205 is 502131041.

It is not a de Polignac number, because 140131205 - 2¹⁰ = 140130181 is a prime.

It is a super-2 number, since 2×140131205² = 39273509229504050, 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 (140131207) 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 15 ways as a sum of consecutive naturals, for example, 6830 + ... + 18080.

It is an arithmetic number, because the mean of its divisors is an integer number (10936944).

Almost surely, 2^140131205 is an apocalyptic number.

It is an amenable number.

140131205 is a deficient number, since it is larger than the sum of its proper divisors (34859899).

140131205 is a wasteful number, since it uses less digits than its factorization.

140131205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11356.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 140131205 is about 11837.7026909785. The cubic root of 140131205 is about 519.4115693451.

Adding to 140131205 its reverse (502131041), we get a palindrome (642262246).

The spelling of 140131205 in words is "one hundred forty million, one hundred thirty-one thousand, two hundred five".