140736671 has 2 divisors, whose sum is σ = 140736672. Its totient is φ = 140736670.

The previous prime is 140736643. The next prime is 140736689. The reversal of 140736671 is 176637041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140736671 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140736611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70368335 + 70368336.

It is an arithmetic number, because the mean of its divisors is an integer number (70368336).

Almost surely, 2^140736671 is an apocalyptic number.

140736671 is a deficient number, since it is larger than the sum of its proper divisors (1).

140736671 is an equidigital number, since it uses as much as digits as its factorization.

140736671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 140736671 is about 11863.2487540302. The cubic root of 140736671 is about 520.1585697372.

The spelling of 140736671 in words is "one hundred forty million, seven hundred thirty-six thousand, six hundred seventy-one".