140364252697 has 2 divisors, whose sum is σ = 140364252698. Its totient is φ = 140364252696.

The previous prime is 140364252683. The next prime is 140364252757. The reversal of 140364252697 is 796252463041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138600588681 + 1763664016 = 372291^2 + 41996^2 .

It is a cyclic number.

It is not a de Polignac number, because 140364252697 - 2¹⁵ = 140364219929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140364252697.

It is not a weakly prime, because it can be changed into another prime (140364252607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70182126348 + 70182126349.

It is an arithmetic number, because the mean of its divisors is an integer number (70182126349).

Almost surely, 2^140364252697 is an apocalyptic number.

It is an amenable number.

140364252697 is a deficient number, since it is larger than the sum of its proper divisors (1).

140364252697 is an equidigital number, since it uses as much as digits as its factorization.

140364252697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 140364252697 in words is "one hundred forty billion, three hundred sixty-four million, two hundred fifty-two thousand, six hundred ninety-seven".