140244141 has 4 divisors (see below), whose sum is σ = 186992192. Its totient is φ = 93496092.

The previous prime is 140244131. The next prime is 140244161. The reversal of 140244141 is 141442041.

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.

It is not a de Polignac number, because 140244141 - 2⁶ = 140244077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140244131) 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, 23374021 + ... + 23374026.

It is an arithmetic number, because the mean of its divisors is an integer number (46748048).

Almost surely, 2^140244141 is an apocalyptic number.

It is an amenable number.

140244141 is a deficient number, since it is larger than the sum of its proper divisors (46748051).

140244141 is an equidigital number, since it uses as much as digits as its factorization.

140244141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46748050.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 140244141 is about 11842.4719125696. The cubic root of 140244141 is about 519.5510684033.

Adding to 140244141 its reverse (141442041), we get a palindrome (281686182).

The spelling of 140244141 in words is "one hundred forty million, two hundred forty-four thousand, one hundred forty-one".