162734321 has 2 divisors, whose sum is σ = 162734322. Its totient is φ = 162734320.

The previous prime is 162734309. The next prime is 162734323. The reversal of 162734321 is 123437261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87235600 + 75498721 = 9340^2 + 8689^2 .

It is an emirp because it is prime and its reverse (123437261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162734321 - 2²⁶ = 95625457 is a prime.

Together with 162734323, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_9119045 and since 162734321 and 9119045 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (162734323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81367160 + 81367161.

It is an arithmetic number, because the mean of its divisors is an integer number (81367161).

Almost surely, 2^162734321 is an apocalyptic number.

It is an amenable number.

162734321 is a deficient number, since it is larger than the sum of its proper divisors (1).

162734321 is an equidigital number, since it uses as much as digits as its factorization.

162734321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 162734321 is about 12756.7362989128. The cubic root of 162734321 is about 545.9586091699.

The spelling of 162734321 in words is "one hundred sixty-two million, seven hundred thirty-four thousand, three hundred twenty-one".