140302221 has 8 divisors (see below), whose sum is σ = 189861984. Its totient is φ = 92138640.

The previous prime is 140302193. The next prime is 140302229. The reversal of 140302221 is 122203041.

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

It is not a de Polignac number, because 140302221 - 2¹⁹ = 139777933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140302229) 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, 348810 + ... + 349211.

It is an arithmetic number, because the mean of its divisors is an integer number (23732748).

Almost surely, 2^140302221 is an apocalyptic number.

It is an amenable number.

140302221 is a deficient number, since it is larger than the sum of its proper divisors (49559763).

140302221 is an equidigital number, since it uses as much as digits as its factorization.

140302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698091.

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

The square root of 140302221 is about 11844.9238494808. The cubic root of 140302221 is about 519.6227799230.

Adding to 140302221 its reverse (122203041), we get a palindrome (262505262).

The spelling of 140302221 in words is "one hundred forty million, three hundred two thousand, two hundred twenty-one".