140244405542053 has 4 divisors (see below), whose sum is σ = 140244444508428. Its totient is φ = 140244366575680.

The previous prime is 140244405542027. The next prime is 140244405542077. The reversal of 140244405542053 is 350245504442041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59149373684769 + 81095031857284 = 7690863^2 + 9005278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140244405542053 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 (140244405542083) 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, 13464826 + ... + 21489307.

It is an arithmetic number, because the mean of its divisors is an integer number (35061111127107).

Almost surely, 2^{140244405542053} is an apocalyptic number.

It is an amenable number.

140244405542053 is a deficient number, since it is larger than the sum of its proper divisors (38966375).

140244405542053 is an equidigital number, since it uses as much as digits as its factorization.

140244405542053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38966374.

The product of its (nonzero) digits is 1536000, while the sum is 43.

Adding to 140244405542053 its reverse (350245504442041), we get a palindrome (490489909984094).

The spelling of 140244405542053 in words is "one hundred forty trillion, two hundred forty-four billion, four hundred five million, five hundred forty-two thousand, fifty-three".