140332221 has 6 divisors (see below), whose sum is σ = 202702110. Its totient is φ = 93554808.

The previous prime is 140332187. The next prime is 140332259. The reversal of 140332221 is 122233041.

It can be written as a sum of positive squares in only one way, i.e., 137804121 + 2528100 = 11739^2 + 1590^2 .

It is not a de Polignac number, because 140332221 - 2¹¹ = 140330173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140332194 and 140332203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140332261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7796226 + ... + 7796243.

It is an arithmetic number, because the mean of its divisors is an integer number (33783685).

Almost surely, 2^140332221 is an apocalyptic number.

It is an amenable number.

140332221 is a deficient number, since it is larger than the sum of its proper divisors (62369889).

140332221 is a wasteful number, since it uses less digits than its factorization.

140332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15592475 (or 15592472 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140332221 is about 11846.1901470473. The cubic root of 140332221 is about 519.6598132461.

Adding to 140332221 its reverse (122233041), we get a palindrome (262565262).

The spelling of 140332221 in words is "one hundred forty million, three hundred thirty-two thousand, two hundred twenty-one".