220146601 has 2 divisors, whose sum is σ = 220146602. Its totient is φ = 220146600.

The previous prime is 220146599. The next prime is 220146607. The reversal of 220146601 is 106641022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196672576 + 23474025 = 14024^2 + 4845^2 .

It is a cyclic number.

It is not a de Polignac number, because 220146601 - 2¹ = 220146599 is a prime.

Together with 220146599, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220146607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110073300 + 110073301.

It is an arithmetic number, because the mean of its divisors is an integer number (110073301).

Almost surely, 2^220146601 is an apocalyptic number.

It is an amenable number.

220146601 is a deficient number, since it is larger than the sum of its proper divisors (1).

220146601 is an equidigital number, since it uses as much as digits as its factorization.

220146601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 220146601 is about 14837.3380698830. The cubic root of 220146601 is about 603.8151351926.

Adding to 220146601 its reverse (106641022), we get a palindrome (326787623).

The spelling of 220146601 in words is "two hundred twenty million, one hundred forty-six thousand, six hundred one".