146316689 has 2 divisors, whose sum is σ = 146316690. Its totient is φ = 146316688.

The previous prime is 146316649. The next prime is 146316691. The reversal of 146316689 is 986613641.

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., 132066064 + 14250625 = 11492^2 + 3775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146316689 is a prime.

Together with 146316691, 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 (146316619) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73158344 + 73158345.

It is an arithmetic number, because the mean of its divisors is an integer number (73158345).

Almost surely, 2^146316689 is an apocalyptic number.

It is an amenable number.

146316689 is a deficient number, since it is larger than the sum of its proper divisors (1).

146316689 is an equidigital number, since it uses as much as digits as its factorization.

146316689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 146316689 is about 12096.1435590026. The cubic root of 146316689 is about 526.9441914912.

The spelling of 146316689 in words is "one hundred forty-six million, three hundred sixteen thousand, six hundred eighty-nine".