140212841 has 4 divisors (see below), whose sum is σ = 140380800. Its totient is φ = 140044884.

The previous prime is 140212829. The next prime is 140212847. The reversal of 140212841 is 148212041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148212041 = 173 ⋅856717.

It is a cyclic number.

It is not a de Polignac number, because 140212841 - 2⁶ = 140212777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140212847) 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, 82721 + ... + 84398.

It is an arithmetic number, because the mean of its divisors is an integer number (35095200).

Almost surely, 2^140212841 is an apocalyptic number.

It is an amenable number.

140212841 is a deficient number, since it is larger than the sum of its proper divisors (167959).

140212841 is an equidigital number, since it uses as much as digits as its factorization.

140212841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167958.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 140212841 is about 11841.1503241873. The cubic root of 140212841 is about 519.5124140056.

Adding to 140212841 its reverse (148212041), we get a palindrome (288424882).

The spelling of 140212841 in words is "one hundred forty million, two hundred twelve thousand, eight hundred forty-one".