140243071 has 8 divisors (see below), whose sum is σ = 141084720. Its totient is φ = 139404672.

The previous prime is 140243069. The next prime is 140243111. The reversal of 140243071 is 170342041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140243071 - 2¹ = 140243069 is a prime.

It is a super-2 number, since 2×140243071² = 39336237927022082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140243011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181041 + ... + 181813.

It is an arithmetic number, because the mean of its divisors is an integer number (17635590).

Almost surely, 2^140243071 is an apocalyptic number.

140243071 is a deficient number, since it is larger than the sum of its proper divisors (841649).

140243071 is an equidigital number, since it uses as much as digits as its factorization.

140243071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 140243071 is about 11842.4267361044. The cubic root of 140243071 is about 519.5497470859.

The spelling of 140243071 in words is "one hundred forty million, two hundred forty-three thousand, seventy-one".