140304109 has 8 divisors (see below), whose sum is σ = 157996800. Its totient is φ = 123434400.

The previous prime is 140304107. The next prime is 140304121. The reversal of 140304109 is 901403041.

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

It is a cyclic number.

It is not a de Polignac number, because 140304109 - 2¹ = 140304107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140304109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140304107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205384 + ... + 206065.

It is an arithmetic number, because the mean of its divisors is an integer number (19749600).

Almost surely, 2^140304109 is an apocalyptic number.

It is an amenable number.

140304109 is a deficient number, since it is larger than the sum of its proper divisors (17692691).

140304109 is a wasteful number, since it uses less digits than its factorization.

140304109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411491.

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

The square root of 140304109 is about 11845.0035457994. The cubic root of 140304109 is about 519.6251107091.

The spelling of 140304109 in words is "one hundred forty million, three hundred four thousand, one hundred nine".