140032221 has 16 divisors (see below), whose sum is σ = 214944384. Its totient is φ = 79432704.

The previous prime is 140032187. The next prime is 140032253. The reversal of 140032221 is 122230041.

140032221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140032221 - 2⁹ = 140031709 is a prime.

It is a super-3 number, since 3×140032221³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140032221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140032021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21460 + ... + 27213.

It is an arithmetic number, because the mean of its divisors is an integer number (13434024).

Almost surely, 2^140032221 is an apocalyptic number.

It is an amenable number.

140032221 is a deficient number, since it is larger than the sum of its proper divisors (74912163).

140032221 is a wasteful number, since it uses less digits than its factorization.

140032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48820.

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

The square root of 140032221 is about 11833.5210736281. The cubic root of 140032221 is about 519.2892422134.

Adding to 140032221 its reverse (122230041), we get a palindrome (262262262).

The spelling of 140032221 in words is "one hundred forty million, thirty-two thousand, two hundred twenty-one".