140034305 has 8 divisors (see below), whose sum is σ = 168205632. Its totient is φ = 111917808.

The previous prime is 140034289. The next prime is 140034319. The reversal of 140034305 is 503430041.

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 140034305 - 2⁴ = 140034289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7859 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (21025704).

Almost surely, 2^140034305 is an apocalyptic number.

It is an amenable number.

140034305 is a deficient number, since it is larger than the sum of its proper divisors (28171327).

140034305 is a wasteful number, since it uses less digits than its factorization.

140034305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27415.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 140034305 is about 11833.6091282415. The cubic root of 140034305 is about 519.2918182715.

Adding to 140034305 its reverse (503430041), we get a palindrome (643464346).

The spelling of 140034305 in words is "one hundred forty million, thirty-four thousand, three hundred five".