140720443 has 4 divisors (see below), whose sum is σ = 140762448. Its totient is φ = 140678440.

The previous prime is 140720431. The next prime is 140720477. The reversal of 140720443 is 344027041.

140720443 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 not a de Polignac number, because 140720443 - 2²¹ = 138623291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140720413) 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, 15496 + ... + 22837.

It is an arithmetic number, because the mean of its divisors is an integer number (35190612).

Almost surely, 2^140720443 is an apocalyptic number.

140720443 is a deficient number, since it is larger than the sum of its proper divisors (42005).

140720443 is an equidigital number, since it uses as much as digits as its factorization.

140720443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42004.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 140720443 is about 11862.5647732689. The cubic root of 140720443 is about 520.1385762328.

Adding to 140720443 its reverse (344027041), we get a palindrome (484747484).

The spelling of 140720443 in words is "one hundred forty million, seven hundred twenty thousand, four hundred forty-three".