146159609 has 4 divisors (see below), whose sum is σ = 153852240. Its totient is φ = 138466980.

The previous prime is 146159593. The next prime is 146159639. The reversal of 146159609 is 906951641.

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 an emirpimes, since its reverse is a distinct semiprime: 906951641 = 17341 ⋅52301.

It is a cyclic number.

It is not a de Polignac number, because 146159609 - 2⁴ = 146159593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146159639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3846287 + ... + 3846324.

It is an arithmetic number, because the mean of its divisors is an integer number (38463060).

Almost surely, 2^146159609 is an apocalyptic number.

146159609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

146159609 is a deficient number, since it is larger than the sum of its proper divisors (7692631).

146159609 is an equidigital number, since it uses as much as digits as its factorization.

146159609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692630.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 146159609 is about 12089.6488369183. The cubic root of 146159609 is about 526.7555549288.

The spelling of 146159609 in words is "one hundred forty-six million, one hundred fifty-nine thousand, six hundred nine".