140713861 has 2 divisors, whose sum is σ = 140713862. Its totient is φ = 140713860.

The previous prime is 140713831. The next prime is 140713873. The reversal of 140713861 is 168317041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85211361 + 55502500 = 9231^2 + 7450^2 .

It is a cyclic number.

It is not a de Polignac number, because 140713861 - 2⁷ = 140713733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140713831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70356930 + 70356931.

It is an arithmetic number, because the mean of its divisors is an integer number (70356931).

Almost surely, 2^140713861 is an apocalyptic number.

It is an amenable number.

140713861 is a deficient number, since it is larger than the sum of its proper divisors (1).

140713861 is an equidigital number, since it uses as much as digits as its factorization.

140713861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 140713861 is about 11862.2873426671. The cubic root of 140713861 is about 520.1304665239.

The spelling of 140713861 in words is "one hundred forty million, seven hundred thirteen thousand, eight hundred sixty-one".