146064409 has 4 divisors (see below), whose sum is σ = 146088720. Its totient is φ = 146040100.

The previous prime is 146064389. The next prime is 146064433. The reversal of 146064409 is 904460641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 146064409 - 2⁵ = 146064377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146062409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4134 + ... + 17584.

It is an arithmetic number, because the mean of its divisors is an integer number (36522180).

Almost surely, 2^146064409 is an apocalyptic number.

It is an amenable number.

146064409 is a deficient number, since it is larger than the sum of its proper divisors (24311).

146064409 is a wasteful number, since it uses less digits than its factorization.

146064409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24310.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 146064409 is about 12085.7109430931. The cubic root of 146064409 is about 526.6411639541.

The spelling of 146064409 in words is "one hundred forty-six million, sixty-four thousand, four hundred nine".