140027917 has 2 divisors, whose sum is σ = 140027918. Its totient is φ = 140027916.

The previous prime is 140027893. The next prime is 140027947. The reversal of 140027917 is 719720041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90269001 + 49758916 = 9501^2 + 7054^2 .

It is a cyclic number.

It is not a de Polignac number, because 140027917 - 2¹⁹ = 139503629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140027947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70013958 + 70013959.

It is an arithmetic number, because the mean of its divisors is an integer number (70013959).

Almost surely, 2^140027917 is an apocalyptic number.

It is an amenable number.

140027917 is a deficient number, since it is larger than the sum of its proper divisors (1).

140027917 is an equidigital number, since it uses as much as digits as its factorization.

140027917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 140027917 is about 11833.3392159610. The cubic root of 140027917 is about 519.2839219050.

Adding to 140027917 its reverse (719720041), we get a palindrome (859747958).

The spelling of 140027917 in words is "one hundred forty million, twenty-seven thousand, nine hundred seventeen".