146180165 has 4 divisors (see below), whose sum is σ = 175416204. Its totient is φ = 116944128.

The previous prime is 146180147. The next prime is 146180179. The reversal of 146180165 is 561081641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561081641 = 1213 ⋅462557.

It can be written as a sum of positive squares in 2 ways, for example, as 66863329 + 79316836 = 8177^2 + 8906^2 .

It is a cyclic number.

It is not a de Polignac number, because 146180165 - 2⁶ = 146180101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 14618012 + ... + 14618021.

It is an arithmetic number, because the mean of its divisors is an integer number (43854051).

Almost surely, 2^146180165 is an apocalyptic number.

It is an amenable number.

146180165 is a deficient number, since it is larger than the sum of its proper divisors (29236039).

146180165 is an equidigital number, since it uses as much as digits as its factorization.

146180165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29236038.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 146180165 is about 12090.4989557917. The cubic root of 146180165 is about 526.7802482069.

The spelling of 146180165 in words is "one hundred forty-six million, one hundred eighty thousand, one hundred sixty-five".