140335442501 has 2 divisors, whose sum is σ = 140335442502. Its totient is φ = 140335442500.

The previous prime is 140335442477. The next prime is 140335442509. The reversal of 140335442501 is 105244533041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86172189601 + 54163252900 = 293551^2 + 232730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140335442501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140335442509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70167721250 + 70167721251.

It is an arithmetic number, because the mean of its divisors is an integer number (70167721251).

Almost surely, 2^140335442501 is an apocalyptic number.

It is an amenable number.

140335442501 is a deficient number, since it is larger than the sum of its proper divisors (1).

140335442501 is an equidigital number, since it uses as much as digits as its factorization.

140335442501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 140335442501 its reverse (105244533041), we get a palindrome (245579975542).

The spelling of 140335442501 in words is "one hundred forty billion, three hundred thirty-five million, four hundred forty-two thousand, five hundred one".