162215201 has 2 divisors, whose sum is σ = 162215202. Its totient is φ = 162215200.

The previous prime is 162215197. The next prime is 162215233. The reversal of 162215201 is 102512261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89283601 + 72931600 = 9449^2 + 8540^2 .

It is a cyclic number.

It is not a de Polignac number, because 162215201 - 2² = 162215197 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (162215701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81107600 + 81107601.

It is an arithmetic number, because the mean of its divisors is an integer number (81107601).

Almost surely, 2^162215201 is an apocalyptic number.

It is an amenable number.

162215201 is a deficient number, since it is larger than the sum of its proper divisors (1).

162215201 is an equidigital number, since it uses as much as digits as its factorization.

162215201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 162215201 is about 12736.3731493703. The cubic root of 162215201 is about 545.3774575663.

Adding to 162215201 its reverse (102512261), we get a palindrome (264727462).

The spelling of 162215201 in words is "one hundred sixty-two million, two hundred fifteen thousand, two hundred one".