140709173 has 8 divisors (see below), whose sum is σ = 154936800. Its totient is φ = 126720880.

The previous prime is 140709167. The next prime is 140709181. The reversal of 140709173 is 371907041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140709173 - 2⁴ = 140709157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140709103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58598 + ... + 60951.

It is an arithmetic number, because the mean of its divisors is an integer number (19367100).

Almost surely, 2^140709173 is an apocalyptic number.

It is an amenable number.

140709173 is a deficient number, since it is larger than the sum of its proper divisors (14227627).

140709173 is a wasteful number, since it uses less digits than its factorization.

140709173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119667.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 140709173 is about 11862.0897400079. The cubic root of 140709173 is about 520.1246902659.

The spelling of 140709173 in words is "one hundred forty million, seven hundred nine thousand, one hundred seventy-three".