65162189 has 2 divisors, whose sum is σ = 65162190. Its totient is φ = 65162188.

The previous prime is 65162171. The next prime is 65162219. The reversal of 65162189 is 98126156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37515625 + 27646564 = 6125^2 + 5258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65162189 is a prime.

It is a super-2 number, since 2×65162189² = 8492221750543442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65162129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32581094 + 32581095.

It is an arithmetic number, because the mean of its divisors is an integer number (32581095).

Almost surely, 2^65162189 is an apocalyptic number.

It is an amenable number.

65162189 is a deficient number, since it is larger than the sum of its proper divisors (1).

65162189 is an equidigital number, since it uses as much as digits as its factorization.

65162189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 65162189 is about 8072.3100163460. The cubic root of 65162189 is about 402.4067173202.

The spelling of 65162189 in words is "sixty-five million, one hundred sixty-two thousand, one hundred eighty-nine".