146605225109 has 4 divisors (see below), whose sum is σ = 167548828704. Its totient is φ = 125661621516.

The previous prime is 146605225103. The next prime is 146605225111. The reversal of 146605225109 is 901522506641.

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.

It is a cyclic number.

It is not a de Polignac number, because 146605225109 - 2⁴ = 146605225093 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 (146605225103) 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, 10471801787 + ... + 10471801800.

It is an arithmetic number, because the mean of its divisors is an integer number (41887207176).

Almost surely, 2^146605225109 is an apocalyptic number.

It is an amenable number.

146605225109 is a deficient number, since it is larger than the sum of its proper divisors (20943603595).

146605225109 is an equidigital number, since it uses as much as digits as its factorization.

146605225109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20943603594.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 146605225109 in words is "one hundred forty-six billion, six hundred five million, two hundred twenty-five thousand, one hundred nine".