140132209 has 18 divisors (see below), whose sum is σ = 167615910. Its totient is φ = 116811072.

The previous prime is 140132197. The next prime is 140132243. The reversal of 140132209 is 902231041.

It can be written as a sum of positive squares in 3 ways, for example, as 107184609 + 32947600 = 10353^2 + 5740^2 .

It is not a de Polignac number, because 140132209 - 2¹⁵ = 140099441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140132209.

It is not an unprimeable number, because it can be changed into a prime (140132269) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66037 + ... + 68125.

It is an arithmetic number, because the mean of its divisors is an integer number (9311995).

Almost surely, 2^140132209 is an apocalyptic number.

It is an amenable number.

140132209 is a deficient number, since it is larger than the sum of its proper divisors (27483701).

140132209 is an equidigital number, since it uses as much as digits as its factorization.

140132209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177 (or 2133 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 140132209 is about 11837.7450977794. The cubic root of 140132209 is about 519.4128098206.

The spelling of 140132209 in words is "one hundred forty million, one hundred thirty-two thousand, two hundred nine".