140715761 has 2 divisors, whose sum is σ = 140715762. Its totient is φ = 140715760.

The previous prime is 140715739. The next prime is 140715769. The reversal of 140715761 is 167517041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138203536 + 2512225 = 11756^2 + 1585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140715761 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140715769) 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, 70357880 + 70357881.

It is an arithmetic number, because the mean of its divisors is an integer number (70357881).

Almost surely, 2^140715761 is an apocalyptic number.

It is an amenable number.

140715761 is a deficient number, since it is larger than the sum of its proper divisors (1).

140715761 is an equidigital number, since it uses as much as digits as its factorization.

140715761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 140715761 is about 11862.3674281317. The cubic root of 140715761 is about 520.1328075476.

The spelling of 140715761 in words is "one hundred forty million, seven hundred fifteen thousand, seven hundred sixty-one".