146166209 has 32 divisors (see below), whose sum is σ = 179159040. Its totient is φ = 116625600.

The previous prime is 146166203. The next prime is 146166227. The reversal of 146166209 is 902661641.

It is not a de Polignac number, because 146166209 - 2¹² = 146162113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146166203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816482 + ... + 816660.

It is an arithmetic number, because the mean of its divisors is an integer number (5598720).

Almost surely, 2^146166209 is an apocalyptic number.

It is an amenable number.

146166209 is a deficient number, since it is larger than the sum of its proper divisors (32992831).

146166209 is a wasteful number, since it uses less digits than its factorization.

146166209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 146166209 is about 12089.9217946189. The cubic root of 146166209 is about 526.7634835542.

The spelling of 146166209 in words is "one hundred forty-six million, one hundred sixty-six thousand, two hundred nine".