146906609 has 4 divisors (see below), whose sum is σ = 147037860. Its totient is φ = 146775360.

The previous prime is 146906593. The next prime is 146906647. The reversal of 146906609 is 906609641.

146906609 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 can be written as a sum of positive squares in 2 ways, for example, as 68973025 + 77933584 = 8305^2 + 8828^2 .

It is a cyclic number.

It is not a de Polignac number, because 146906609 - 2⁴ = 146906593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146966609) 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, 63932 + ... + 66189.

It is an arithmetic number, because the mean of its divisors is an integer number (36759465).

Almost surely, 2^146906609 is an apocalyptic number.

It is an amenable number.

146906609 is a deficient number, since it is larger than the sum of its proper divisors (131251).

146906609 is a wasteful number, since it uses less digits than its factorization.

146906609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131250.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 146906609 is about 12120.5036611520. The cubic root of 146906609 is about 527.6514201842.

The spelling of 146906609 in words is "one hundred forty-six million, nine hundred six thousand, six hundred nine".