140319909 has 24 divisors (see below), whose sum is σ = 207916800. Its totient is φ = 91162368.

The previous prime is 140319889. The next prime is 140319911. The reversal of 140319909 is 909913041.

It is not a de Polignac number, because 140319909 - 2⁸ = 140319653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140319929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57292 + ... + 59690.

It is an arithmetic number, because the mean of its divisors is an integer number (8663200).

Almost surely, 2^140319909 is an apocalyptic number.

It is an amenable number.

140319909 is a deficient number, since it is larger than the sum of its proper divisors (67596891).

140319909 is a wasteful number, since it uses less digits than its factorization.

140319909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2566 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 140319909 is about 11845.6704749035. The cubic root of 140319909 is about 519.6446154089.

It can be divided in two parts, 1403 and 19909, that added together give a palindrome (21312).

The spelling of 140319909 in words is "one hundred forty million, three hundred nineteen thousand, nine hundred nine".