162358561 has 2 divisors, whose sum is σ = 162358562. Its totient is φ = 162358560.

The previous prime is 162358531. The next prime is 162358571. The reversal of 162358561 is 165853261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82810000 + 79548561 = 9100^2 + 8919^2 .

It is a cyclic number.

It is not a de Polignac number, because 162358561 - 2⁷ = 162358433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162358561.

It is not a weakly prime, because it can be changed into another prime (162358531) 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, 81179280 + 81179281.

It is an arithmetic number, because the mean of its divisors is an integer number (81179281).

Almost surely, 2^162358561 is an apocalyptic number.

It is an amenable number.

162358561 is a deficient number, since it is larger than the sum of its proper divisors (1).

162358561 is an equidigital number, since it uses as much as digits as its factorization.

162358561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 162358561 is about 12741.9998822791. Note that the first 3 decimals coincide. The cubic root of 162358561 is about 545.5380719655.

The spelling of 162358561 in words is "one hundred sixty-two million, three hundred fifty-eight thousand, five hundred sixty-one".