140560447 has 4 divisors (see below), whose sum is σ = 144359416. Its totient is φ = 136761480.

The previous prime is 140560397. The next prime is 140560457. The reversal of 140560447 is 744065041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140560447 - 2⁷ = 140560319 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 (140560457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1899429 + ... + 1899502.

It is an arithmetic number, because the mean of its divisors is an integer number (36089854).

Almost surely, 2^140560447 is an apocalyptic number.

140560447 is a deficient number, since it is larger than the sum of its proper divisors (3798969).

140560447 is an equidigital number, since it uses as much as digits as its factorization.

140560447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798968.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 140560447 is about 11855.8191197403. The cubic root of 140560447 is about 519.9413728282.

The spelling of 140560447 in words is "one hundred forty million, five hundred sixty thousand, four hundred forty-seven".