140515620317 has 2 divisors, whose sum is σ = 140515620318. Its totient is φ = 140515620316.

The previous prime is 140515620283. The next prime is 140515620347. The reversal of 140515620317 is 713026515041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124798986361 + 15716633956 = 353269^2 + 125366^2 .

It is a cyclic number.

It is not a de Polignac number, because 140515620317 - 2²⁰ = 140514571741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140515620347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70257810158 + 70257810159.

It is an arithmetic number, because the mean of its divisors is an integer number (70257810159).

Almost surely, 2^140515620317 is an apocalyptic number.

It is an amenable number.

140515620317 is a deficient number, since it is larger than the sum of its proper divisors (1).

140515620317 is an equidigital number, since it uses as much as digits as its factorization.

140515620317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 140515620317 in words is "one hundred forty billion, five hundred fifteen million, six hundred twenty thousand, three hundred seventeen".