140705843 has 2 divisors, whose sum is σ = 140705844. Its totient is φ = 140705842.

The previous prime is 140705837. The next prime is 140705863. The reversal of 140705843 is 348507041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140705843 - 2⁶ = 140705779 is a prime.

It is not a weakly prime, because it can be changed into another prime (140705813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70352921 + 70352922.

It is an arithmetic number, because the mean of its divisors is an integer number (70352922).

Almost surely, 2^140705843 is an apocalyptic number.

140705843 is a deficient number, since it is larger than the sum of its proper divisors (1).

140705843 is an equidigital number, since it uses as much as digits as its factorization.

140705843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 140705843 is about 11861.9493760511. The cubic root of 140705843 is about 520.1205871719.

The spelling of 140705843 in words is "one hundred forty million, seven hundred five thousand, eight hundred forty-three".