140440340430937 has 2 divisors, whose sum is σ = 140440340430938. Its totient is φ = 140440340430936.

The previous prime is 140440340430917. The next prime is 140440340431043. The reversal of 140440340430937 is 739034043044041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124108267071321 + 16332073359616 = 11140389^2 + 4041296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140440340430937 is a prime.

It is not a weakly prime, because it can be changed into another prime (140440340430917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70220170215468 + 70220170215469.

It is an arithmetic number, because the mean of its divisors is an integer number (70220170215469).

Almost surely, 2^{140440340430937} is an apocalyptic number.

It is an amenable number.

140440340430937 is a deficient number, since it is larger than the sum of its proper divisors (1).

140440340430937 is an equidigital number, since it uses as much as digits as its factorization.

140440340430937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 46.

Adding to 140440340430937 its reverse (739034043044041), we get a palindrome (879474383474978).

The spelling of 140440340430937 in words is "one hundred forty trillion, four hundred forty billion, three hundred forty million, four hundred thirty thousand, nine hundred thirty-seven".