146009 has 2 divisors, whose sum is σ = 146010. Its totient is φ = 146008.

The previous prime is 145991. The next prime is 146011. The reversal of 146009 is 900641.

146009 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., 120409 + 25600 = 347^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 146009 - 2⁸ = 145753 is a prime.

Together with 146011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73004 + 73005.

It is an arithmetic number, because the mean of its divisors is an integer number (73005).

2¹⁴⁶⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

146009 is a deficient number, since it is larger than the sum of its proper divisors (1).

146009 is an equidigital number, since it uses as much as digits as its factorization.

146009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 146009 is about 382.1112403476. Note that the first 3 decimals coincide. The cubic root of 146009 is about 52.6574562398.

The spelling of 146009 in words is "one hundred forty-six thousand, nine".