140343271 has 4 divisors (see below), whose sum is σ = 143607112. Its totient is φ = 137079432.

The previous prime is 140343239. The next prime is 140343323. The reversal of 140343271 is 172343041.

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 140343271 - 2⁵ = 140343239 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 (140343221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631856 + ... + 1631941.

It is an arithmetic number, because the mean of its divisors is an integer number (35901778).

Almost surely, 2^140343271 is an apocalyptic number.

140343271 is a deficient number, since it is larger than the sum of its proper divisors (3263841).

140343271 is an equidigital number, since it uses as much as digits as its factorization.

140343271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263840.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 140343271 is about 11846.6565325412. The cubic root of 140343271 is about 519.6734525234.

The spelling of 140343271 in words is "one hundred forty million, three hundred forty-three thousand, two hundred seventy-one".