140099185 has 4 divisors (see below), whose sum is σ = 168119028. Its totient is φ = 112079344.

The previous prime is 140099123. The next prime is 140099189. The reversal of 140099185 is 581990041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 581990041 = 353 ⋅1648697.

It can be written as a sum of positive squares in 2 ways, for example, as 87086224 + 53012961 = 9332^2 + 7281^2 .

It is a cyclic number.

It is not a de Polignac number, because 140099185 - 2¹¹ = 140097137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140099189) 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, 14009914 + ... + 14009923.

It is an arithmetic number, because the mean of its divisors is an integer number (42029757).

Almost surely, 2^140099185 is an apocalyptic number.

It is an amenable number.

140099185 is a deficient number, since it is larger than the sum of its proper divisors (28019843).

140099185 is an equidigital number, since it uses as much as digits as its factorization.

140099185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28019842.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 140099185 is about 11836.3501553477. The cubic root of 140099185 is about 519.3720044593.

The spelling of 140099185 in words is "one hundred forty million, ninety-nine thousand, one hundred eighty-five".