140744171 has 4 divisors (see below), whose sum is σ = 140780832. Its totient is φ = 140707512.

The previous prime is 140744161. The next prime is 140744209. The reversal of 140744171 is 171447041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171447041 = 83 ⋅2065627.

It is a cyclic number.

It is not a de Polignac number, because 140744171 - 2¹⁰ = 140743147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140744111) 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, 11795 + ... + 20508.

It is an arithmetic number, because the mean of its divisors is an integer number (35195208).

Almost surely, 2^140744171 is an apocalyptic number.

140744171 is a deficient number, since it is larger than the sum of its proper divisors (36661).

140744171 is an equidigital number, since it uses as much as digits as its factorization.

140744171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36660.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 140744171 is about 11863.5648521007. The cubic root of 140744171 is about 520.1678094991.

The spelling of 140744171 in words is "one hundred forty million, seven hundred forty-four thousand, one hundred seventy-one".