146909 has 8 divisors (see below), whose sum is σ = 173568. Its totient is φ = 121680.

The previous prime is 146893. The next prime is 146917. The reversal of 146909 is 909641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146909 - 2⁴ = 146893 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122 + ... + 555.

It is an arithmetic number, because the mean of its divisors is an integer number (21696).

2¹⁴⁶⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

146909 is a deficient number, since it is larger than the sum of its proper divisors (26659).

146909 is an equidigital number, since it uses as much as digits as its factorization.

146909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 146909 is about 383.2870986610. The cubic root of 146909 is about 52.7654282791.

The spelling of 146909 in words is "one hundred forty-six thousand, nine hundred nine".