140543671 has 2 divisors, whose sum is σ = 140543672. Its totient is φ = 140543670.

The previous prime is 140543659. The next prime is 140543681. The reversal of 140543671 is 176345041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140543671 - 2⁹ = 140543159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140543681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70271835 + 70271836.

It is an arithmetic number, because the mean of its divisors is an integer number (70271836).

Almost surely, 2^140543671 is an apocalyptic number.

140543671 is a deficient number, since it is larger than the sum of its proper divisors (1).

140543671 is an equidigital number, since it uses as much as digits as its factorization.

140543671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 140543671 is about 11855.1115979564. Note that the first 3 decimals coincide. The cubic root of 140543671 is about 519.9206868679.

The spelling of 140543671 in words is "one hundred forty million, five hundred forty-three thousand, six hundred seventy-one".