162664189 has 2 divisors, whose sum is σ = 162664190. Its totient is φ = 162664188.

The previous prime is 162664153. The next prime is 162664199. The reversal of 162664189 is 981466261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87703225 + 74960964 = 9365^2 + 8658^2 .

It is a cyclic number.

It is not a de Polignac number, because 162664189 - 2²⁷ = 28446461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162664199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81332094 + 81332095.

It is an arithmetic number, because the mean of its divisors is an integer number (81332095).

Almost surely, 2^162664189 is an apocalyptic number.

It is an amenable number.

162664189 is a deficient number, since it is larger than the sum of its proper divisors (1).

162664189 is an equidigital number, since it uses as much as digits as its factorization.

162664189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 162664189 is about 12753.9871804860. The cubic root of 162664189 is about 545.8801691075.

The spelling of 162664189 in words is "one hundred sixty-two million, six hundred sixty-four thousand, one hundred eighty-nine".