145585219 has 12 divisors (see below), whose sum is σ = 161498232. Its totient is φ = 131102400.

The previous prime is 145585189. The next prime is 145585259. The reversal of 145585219 is 912585541.

It is not a de Polignac number, because 145585219 - 2¹¹ = 145583171 is a prime.

It is a super-2 number, since 2×145585219² = 42390111982555922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145585259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3577 + ... + 17434.

It is an arithmetic number, because the mean of its divisors is an integer number (13458186).

Almost surely, 2^145585219 is an apocalyptic number.

145585219 is a deficient number, since it is larger than the sum of its proper divisors (15913013).

145585219 is a wasteful number, since it uses less digits than its factorization.

145585219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21078 (or 21065 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

The square root of 145585219 is about 12065.8700059299. The cubic root of 145585219 is about 526.0646200013.

The spelling of 145585219 in words is "one hundred forty-five million, five hundred eighty-five thousand, two hundred nineteen".