140243115 has 32 divisors (see below), whose sum is σ = 238303296. Its totient is φ = 70184960.

The previous prime is 140243113. The next prime is 140243119. The reversal of 140243115 is 511342041.

It is not a de Polignac number, because 140243115 - 2¹ = 140243113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140243091 and 140243100.

It is not an unprimeable number, because it can be changed into a prime (140243111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116959 + ... + 118151.

It is an arithmetic number, because the mean of its divisors is an integer number (7446978).

Almost surely, 2^140243115 is an apocalyptic number.

140243115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140243115 is a deficient number, since it is larger than the sum of its proper divisors (98060181).

140243115 is a wasteful number, since it uses less digits than its factorization.

140243115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140243115 is about 11842.4285938316. The cubic root of 140243115 is about 519.5498014206.

Adding to 140243115 its reverse (511342041), we get a palindrome (651585156).

The spelling of 140243115 in words is "one hundred forty million, two hundred forty-three thousand, one hundred fifteen".