140081085 has 12 divisors (see below), whose sum is σ = 242807292. Its totient is φ = 74709888.

The previous prime is 140081069. The next prime is 140081089. The reversal of 140081085 is 580180041.

It can be written as a sum of positive squares in 2 ways, for example, as 60746436 + 79334649 = 7794^2 + 8907^2 .

It is not a de Polignac number, because 140081085 - 2⁴ = 140081069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140081089) 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 11 ways as a sum of consecutive naturals, for example, 1556412 + ... + 1556501.

It is an arithmetic number, because the mean of its divisors is an integer number (20233941).

Almost surely, 2^140081085 is an apocalyptic number.

140081085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140081085 is a deficient number, since it is larger than the sum of its proper divisors (102726207).

140081085 is a wasteful number, since it uses less digits than its factorization.

140081085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112924 (or 3112921 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 140081085 is about 11835.5855368461. The cubic root of 140081085 is about 519.3496368818.

The spelling of 140081085 in words is "one hundred forty million, eighty-one thousand, eighty-five".