164816837 has 2 divisors, whose sum is σ = 164816838. Its totient is φ = 164816836.

The previous prime is 164816783. The next prime is 164816879. The reversal of 164816837 is 738618461.

Together with previous prime (164816783) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134884996 + 29931841 = 11614^2 + 5471^2 .

It is a cyclic number.

It is not a de Polignac number, because 164816837 - 2¹⁰ = 164815813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164816237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82408418 + 82408419.

It is an arithmetic number, because the mean of its divisors is an integer number (82408419).

Almost surely, 2^164816837 is an apocalyptic number.

It is an amenable number.

164816837 is a deficient number, since it is larger than the sum of its proper divisors (1).

164816837 is an equidigital number, since it uses as much as digits as its factorization.

164816837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 164816837 is about 12838.1009888535. The cubic root of 164816837 is about 548.2776278523.

The spelling of 164816837 in words is "one hundred sixty-four million, eight hundred sixteen thousand, eight hundred thirty-seven".