140003221 has 2 divisors, whose sum is σ = 140003222. Its totient is φ = 140003220.

The previous prime is 140003209. The next prime is 140003257. The reversal of 140003221 is 122300041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135466321 + 4536900 = 11639^2 + 2130^2 .

It is a cyclic number.

It is not a de Polignac number, because 140003221 - 2¹³ = 139995029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140003261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70001610 + 70001611.

It is an arithmetic number, because the mean of its divisors is an integer number (70001611).

Almost surely, 2^140003221 is an apocalyptic number.

It is an amenable number.

140003221 is a deficient number, since it is larger than the sum of its proper divisors (1).

140003221 is an equidigital number, since it uses as much as digits as its factorization.

140003221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 140003221 is about 11832.2956775091. The cubic root of 140003221 is about 519.2533923030.

Adding to 140003221 its reverse (122300041), we get a palindrome (262303262).

The spelling of 140003221 in words is "one hundred forty million, three thousand, two hundred twenty-one".