146090909 has 8 divisors (see below), whose sum is σ = 150585600. Its totient is φ = 141646176.

The previous prime is 146090891. The next prime is 146090929. The reversal of 146090909 is 909090641.

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 146090909 - 2⁸ = 146090653 is a prime.

It is a Duffinian number.

146090909 is a modest number, since divided by 90909 gives 146 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146090929) 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, 6509 + ... + 18290.

It is an arithmetic number, because the mean of its divisors is an integer number (18823200).

Almost surely, 2^146090909 is an apocalyptic number.

It is an amenable number.

146090909 is a deficient number, since it is larger than the sum of its proper divisors (4494691).

146090909 is a wasteful number, since it uses less digits than its factorization.

146090909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24979.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 146090909 is about 12086.8072293720. The cubic root of 146090909 is about 526.6730109706.

The spelling of 146090909 in words is "one hundred forty-six million, ninety thousand, nine hundred nine".