140203221 has 8 divisors (see below), whose sum is σ = 187153344. Its totient is φ = 93360960.

The previous prime is 140203183. The next prime is 140203229. The reversal of 140203221 is 122302041.

140203221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140203221 - 2⁶ = 140203157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140203221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140203229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23881 + ... + 29166.

It is an arithmetic number, because the mean of its divisors is an integer number (23394168).

Almost surely, 2^140203221 is an apocalyptic number.

It is an amenable number.

140203221 is a deficient number, since it is larger than the sum of its proper divisors (46950123).

140203221 is an equidigital number, since it uses as much as digits as its factorization.

140203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53931.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 140203221 is about 11840.7441066852. The cubic root of 140203221 is about 519.5005324887.

Adding to 140203221 its reverse (122302041), we get a palindrome (262505262).

The spelling of 140203221 in words is "one hundred forty million, two hundred three thousand, two hundred twenty-one".