162230521 has 2 divisors, whose sum is σ = 162230522. Its totient is φ = 162230520.

The previous prime is 162230513. The next prime is 162230557. The reversal of 162230521 is 125032261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 63824121 = 9920^2 + 7989^2 .

It is a cyclic number.

It is not a de Polignac number, because 162230521 - 2³ = 162230513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 162230492 and 162230501.

It is not a weakly prime, because it can be changed into another prime (162230501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81115260 + 81115261.

It is an arithmetic number, because the mean of its divisors is an integer number (81115261).

Almost surely, 2^162230521 is an apocalyptic number.

It is an amenable number.

162230521 is a deficient number, since it is larger than the sum of its proper divisors (1).

162230521 is an equidigital number, since it uses as much as digits as its factorization.

162230521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 162230521 is about 12736.9745622734. The cubic root of 162230521 is about 545.3946259525.

Adding to 162230521 its reverse (125032261), we get a palindrome (287262782).

The spelling of 162230521 in words is "one hundred sixty-two million, two hundred thirty thousand, five hundred twenty-one".