140255671 has 4 divisors (see below), whose sum is σ = 140575600. Its totient is φ = 139935744.

The previous prime is 140255669. The next prime is 140255677. The reversal of 140255671 is 176552041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140255671 - 2¹ = 140255669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140255677) 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 in 3 ways as a sum of consecutive naturals, for example, 159306 + ... + 160183.

It is an arithmetic number, because the mean of its divisors is an integer number (35143900).

Almost surely, 2^140255671 is an apocalyptic number.

140255671 is a deficient number, since it is larger than the sum of its proper divisors (319929).

140255671 is an equidigital number, since it uses as much as digits as its factorization.

140255671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319928.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 140255671 is about 11842.9587097144. The cubic root of 140255671 is about 519.5653060977.

The spelling of 140255671 in words is "one hundred forty million, two hundred fifty-five thousand, six hundred seventy-one".