140175531777917 has 2 divisors, whose sum is σ = 140175531777918. Its totient is φ = 140175531777916.

The previous prime is 140175531777817. The next prime is 140175531778013. The reversal of 140175531777917 is 719777135571041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139569981672676 + 605550105241 = 11813974^2 + 778171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140175531777917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140175531777517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70087765888958 + 70087765888959.

It is an arithmetic number, because the mean of its divisors is an integer number (70087765888959).

Almost surely, 2^{140175531777917} is an apocalyptic number.

It is an amenable number.

140175531777917 is a deficient number, since it is larger than the sum of its proper divisors (1).

140175531777917 is an equidigital number, since it uses as much as digits as its factorization.

140175531777917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45378900, while the sum is 65.

The spelling of 140175531777917 in words is "one hundred forty trillion, one hundred seventy-five billion, five hundred thirty-one million, seven hundred seventy-seven thousand, nine hundred seventeen".