140709172 has 6 divisors (see below), whose sum is σ = 246241058. Its totient is φ = 70354584.

The previous prime is 140709167. The next prime is 140709181. The reversal of 140709172 is 271907041.

It can be written as a sum of positive squares in only one way, i.e., 117418896 + 23290276 = 10836^2 + 4826^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17588643 + ... + 17588650.

Almost surely, 2^140709172 is an apocalyptic number.

It is an amenable number.

140709172 is a deficient number, since it is larger than the sum of its proper divisors (105531886).

140709172 is a wasteful number, since it uses less digits than its factorization.

140709172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35177297 (or 35177295 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 140709172 is about 11862.0896978568. The cubic root of 140709172 is about 520.1246890338.

The spelling of 140709172 in words is "one hundred forty million, seven hundred nine thousand, one hundred seventy-two".