140720563 has 4 divisors (see below), whose sum is σ = 145259968. Its totient is φ = 136181160.

The previous prime is 140720549. The next prime is 140720579. The reversal of 140720563 is 365027041.

140720563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140720563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140720663) 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, 2269656 + ... + 2269717.

It is an arithmetic number, because the mean of its divisors is an integer number (36314992).

Almost surely, 2^140720563 is an apocalyptic number.

140720563 is a deficient number, since it is larger than the sum of its proper divisors (4539405).

140720563 is an equidigital number, since it uses as much as digits as its factorization.

140720563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539404.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 140720563 is about 11862.5698311959. The cubic root of 140720563 is about 520.1387240830.

The spelling of 140720563 in words is "one hundred forty million, seven hundred twenty thousand, five hundred sixty-three".