140444147 has 4 divisors (see below), whose sum is σ = 143869656. Its totient is φ = 137018640.

The previous prime is 140444137. The next prime is 140444153. The reversal of 140444147 is 741444041.

140444147 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 140444147 - 2¹⁰ = 140443123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140444107) 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, 1712693 + ... + 1712774.

It is an arithmetic number, because the mean of its divisors is an integer number (35967414).

Almost surely, 2^140444147 is an apocalyptic number.

140444147 is a deficient number, since it is larger than the sum of its proper divisors (3425509).

140444147 is an equidigital number, since it uses as much as digits as its factorization.

140444147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425508.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 140444147 is about 11850.9133403295. The cubic root of 140444147 is about 519.7979330767.

Adding to 140444147 its reverse (741444041), we get a palindrome (881888188).

The spelling of 140444147 in words is "one hundred forty million, four hundred forty-four thousand, one hundred forty-seven".