146845289 has 2 divisors, whose sum is σ = 146845290. Its totient is φ = 146845288.

The previous prime is 146845273. The next prime is 146845331. The reversal of 146845289 is 982548641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145998889 + 846400 = 12083^2 + 920^2 .

It is a cyclic number.

It is not a de Polignac number, because 146845289 - 2⁴ = 146845273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146845229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73422644 + 73422645.

It is an arithmetic number, because the mean of its divisors is an integer number (73422645).

Almost surely, 2^146845289 is an apocalyptic number.

It is an amenable number.

146845289 is a deficient number, since it is larger than the sum of its proper divisors (1).

146845289 is an equidigital number, since it uses as much as digits as its factorization.

146845289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 47.

The square root of 146845289 is about 12117.9737992785. The cubic root of 146845289 is about 527.5779946517.

The spelling of 146845289 in words is "one hundred forty-six million, eight hundred forty-five thousand, two hundred eighty-nine".