140341221 has 8 divisors (see below), whose sum is σ = 207912960. Its totient is φ = 93560796.

The previous prime is 140341213. The next prime is 140341231. The reversal of 140341221 is 122143041.

140341221 is a `hidden beast` number, since 1 + 403 + 41 + 221 = 666.

It is not a de Polignac number, because 140341221 - 2³ = 140341213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140341194 and 140341203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140341231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2598885 + ... + 2598938.

It is an arithmetic number, because the mean of its divisors is an integer number (25989120).

Almost surely, 2^140341221 is an apocalyptic number.

It is an amenable number.

140341221 is a deficient number, since it is larger than the sum of its proper divisors (67571739).

140341221 is an equidigital number, since it uses as much as digits as its factorization.

140341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197832 (or 5197826 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140341221 is about 11846.5700099227. The cubic root of 140341221 is about 519.6709222138.

Adding to 140341221 its reverse (122143041), we get a palindrome (262484262).

It can be divided in two parts, 1403 and 41221, that added together give a palindrome (42624).

The spelling of 140341221 in words is "one hundred forty million, three hundred forty-one thousand, two hundred twenty-one".