162705089 has 2 divisors, whose sum is σ = 162705090. Its totient is φ = 162705088.

The previous prime is 162705043. The next prime is 162705119. The reversal of 162705089 is 980507261.

162705089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117007489 + 45697600 = 10817^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 162705089 - 2²⁰ = 161656513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (162705029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81352544 + 81352545.

It is an arithmetic number, because the mean of its divisors is an integer number (81352545).

Almost surely, 2^162705089 is an apocalyptic number.

It is an amenable number.

162705089 is a deficient number, since it is larger than the sum of its proper divisors (1).

162705089 is an equidigital number, since it uses as much as digits as its factorization.

162705089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 162705089 is about 12755.5904998553. The cubic root of 162705089 is about 545.9259169927.

The spelling of 162705089 in words is "one hundred sixty-two million, seven hundred five thousand, eighty-nine".