140004309 has 8 divisors (see below), whose sum is σ = 186903072. Its totient is φ = 93220880.

The previous prime is 140004301. The next prime is 140004311. The reversal of 140004309 is 903400041.

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 140004309 - 2³ = 140004301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140004301) 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 7 ways as a sum of consecutive naturals, for example, 25959 + ... + 30884.

It is an arithmetic number, because the mean of its divisors is an integer number (23362884).

Almost surely, 2^140004309 is an apocalyptic number.

It is an amenable number.

140004309 is a deficient number, since it is larger than the sum of its proper divisors (46898763).

140004309 is an equidigital number, since it uses as much as digits as its factorization.

140004309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57667.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 140004309 is about 11832.3416532823. The cubic root of 140004309 is about 519.2547373821.

The spelling of 140004309 in words is "one hundred forty million, four thousand, three hundred nine".