140030447 has 8 divisors (see below), whose sum is σ = 142124400. Its totient is φ = 137951424.

The previous prime is 140030413. The next prime is 140030467. The reversal of 140030447 is 744030041.

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 140030447 - 2¹² = 140026351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140030467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15923 + ... + 23099.

It is an arithmetic number, because the mean of its divisors is an integer number (17765550).

Almost surely, 2^140030447 is an apocalyptic number.

140030447 is a deficient number, since it is larger than the sum of its proper divisors (2093953).

140030447 is a wasteful number, since it uses less digits than its factorization.

140030447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 140030447 is about 11833.4461168334. The cubic root of 140030447 is about 519.2870493300.

Adding to 140030447 its reverse (744030041), we get a palindrome (884060488).

The spelling of 140030447 in words is "one hundred forty million, thirty thousand, four hundred forty-seven".