145665184 has 24 divisors (see below), whose sum is σ = 327747168. Its totient is φ = 62427840.

The previous prime is 145665181. The next prime is 145665211. The reversal of 145665184 is 481566541.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (145665181) 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, 324922 + ... + 325369.

It is an arithmetic number, because the mean of its divisors is an integer number (13656132).

Almost surely, 2^145665184 is an apocalyptic number.

145665184 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145665184 is an abundant number, since it is smaller than the sum of its proper divisors (182081984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145665184 is an equidigital number, since it uses as much as digits as its factorization.

145665184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650308 (or 650300 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 145665184 is about 12069.1832366569. The cubic root of 145665184 is about 526.1609188289.

The spelling of 145665184 in words is "one hundred forty-five million, six hundred sixty-five thousand, one hundred eighty-four".