146905909 has 8 divisors (see below), whose sum is σ = 152212320. Its totient is φ = 141615600.

The previous prime is 146905897. The next prime is 146905921. The reversal of 146905909 is 909509641.

It is an interprime number because it is at equal distance from previous prime (146905897) and next prime (146905921).

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 146905909 - 2¹³ = 146897717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146905939) 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 in 7 ways as a sum of consecutive naturals, for example, 16374 + ... + 23704.

It is an arithmetic number, because the mean of its divisors is an integer number (19026540).

Almost surely, 2^146905909 is an apocalyptic number.

It is an amenable number.

146905909 is a deficient number, since it is larger than the sum of its proper divisors (5306411).

146905909 is an equidigital number, since it uses as much as digits as its factorization.

146905909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 146905909 is about 12120.4747844299. The cubic root of 146905909 is about 527.6505821085.

The spelling of 146905909 in words is "one hundred forty-six million, nine hundred five thousand, nine hundred nine".