220140647 has 2 divisors, whose sum is σ = 220140648. Its totient is φ = 220140646.

The previous prime is 220140629. The next prime is 220140671. The reversal of 220140647 is 746041022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220140647 - 2¹² = 220136551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220142647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110070323 + 110070324.

It is an arithmetic number, because the mean of its divisors is an integer number (110070324).

Almost surely, 2^220140647 is an apocalyptic number.

220140647 is a deficient number, since it is larger than the sum of its proper divisors (1).

220140647 is an equidigital number, since it uses as much as digits as its factorization.

220140647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 220140647 is about 14837.1374260671. The cubic root of 220140647 is about 603.8096916265.

Adding to 220140647 its reverse (746041022), we get a palindrome (966181669).

The spelling of 220140647 in words is "two hundred twenty million, one hundred forty thousand, six hundred forty-seven".