140054441 has 4 divisors (see below), whose sum is σ = 140082900. Its totient is φ = 140025984.

The previous prime is 140054437. The next prime is 140054443. The reversal of 140054441 is 144450041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144450041 = 269 ⋅536989.

It can be written as a sum of positive squares in 2 ways, for example, as 123121216 + 16933225 = 11096^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 140054441 - 2² = 140054437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140054443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4736 + ... + 17393.

It is an arithmetic number, because the mean of its divisors is an integer number (35020725).

Almost surely, 2^140054441 is an apocalyptic number.

It is an amenable number.

140054441 is a deficient number, since it is larger than the sum of its proper divisors (28459).

140054441 is an equidigital number, since it uses as much as digits as its factorization.

140054441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28458.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 140054441 is about 11834.4598947311. The cubic root of 140054441 is about 519.3167073130.

The spelling of 140054441 in words is "one hundred forty million, fifty-four thousand, four hundred forty-one".