140220141 has 4 divisors (see below), whose sum is σ = 186960192. Its totient is φ = 93480092.

The previous prime is 140220137. The next prime is 140220149. The reversal of 140220141 is 141022041.

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 a cyclic number.

It is not a de Polignac number, because 140220141 - 2² = 140220137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140220141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140220149) 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, 23370021 + ... + 23370026.

It is an arithmetic number, because the mean of its divisors is an integer number (46740048).

Almost surely, 2^140220141 is an apocalyptic number.

It is an amenable number.

140220141 is a deficient number, since it is larger than the sum of its proper divisors (46740051).

140220141 is an equidigital number, since it uses as much as digits as its factorization.

140220141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46740050.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 140220141 is about 11841.4585672543. The cubic root of 140220141 is about 519.5214297629.

Adding to 140220141 its reverse (141022041), we get a palindrome (281242182).

The spelling of 140220141 in words is "one hundred forty million, two hundred twenty thousand, one hundred forty-one".