39140317 has 2 divisors, whose sum is σ = 39140318. Its totient is φ = 39140316.

The previous prime is 39140303. The next prime is 39140333. The reversal of 39140317 is 71304193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36796356 + 2343961 = 6066^2 + 1531^2 .

It is a cyclic number.

It is not a de Polignac number, because 39140317 - 2¹¹ = 39138269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39140347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19570158 + 19570159.

It is an arithmetic number, because the mean of its divisors is an integer number (19570159).

Almost surely, 2^39140317 is an apocalyptic number.

It is an amenable number.

39140317 is a deficient number, since it is larger than the sum of its proper divisors (1).

39140317 is an equidigital number, since it uses as much as digits as its factorization.

39140317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 39140317 is about 6256.2222626758. Note that the first 4 decimals coincide. The cubic root of 39140317 is about 339.5273623168.

The spelling of 39140317 in words is "thirty-nine million, one hundred forty thousand, three hundred seventeen".