140012243 has 8 divisors (see below), whose sum is σ = 160521312. Its totient is φ = 119630016.

The previous prime is 140012239. The next prime is 140012281. The reversal of 140012243 is 342210041.

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 140012243 - 2² = 140012239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140011243) 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 7 ways as a sum of consecutive naturals, for example, 29330 + ... + 33767.

It is an arithmetic number, because the mean of its divisors is an integer number (20065164).

Almost surely, 2^140012243 is an apocalyptic number.

140012243 is a deficient number, since it is larger than the sum of its proper divisors (20509069).

140012243 is an equidigital number, since it uses as much as digits as its factorization.

140012243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63421.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140012243 is about 11832.6769160659. The cubic root of 140012243 is about 519.2645458642.

Adding to 140012243 its reverse (342210041), we get a palindrome (482222284).

The spelling of 140012243 in words is "one hundred forty million, twelve thousand, two hundred forty-three".