146447 has 4 divisors (see below), whose sum is σ = 167376. Its totient is φ = 125520.

The previous prime is 146437. The next prime is 146449. The reversal of 146447 is 744641.

146447 is nontrivially palindromic in base 15.

146447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146447 - 2⁶ = 146383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 146447.

It is not an unprimeable number, because it can be changed into a prime (146449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10454 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (41844).

2¹⁴⁶⁴⁴⁷ is an apocalyptic number.

146447 is a deficient number, since it is larger than the sum of its proper divisors (20929).

146447 is an equidigital number, since it uses as much as digits as its factorization.

146447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20928.

The product of its digits is 2688, while the sum is 26.

The square root of 146447 is about 382.6839426995. The cubic root of 146447 is about 52.7100578868.

The spelling of 146447 in words is "one hundred forty-six thousand, four hundred forty-seven".