145205516234 has 8 divisors (see below), whose sum is σ = 219270075300. Its totient is φ = 72115491136.

The previous prime is 145205516189. The next prime is 145205516257. The reversal of 145205516234 is 432615502541.

It can be written as a sum of positive squares in 2 ways, for example, as 135184905625 + 10020610609 = 367675^2 + 100103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243633119 + ... + 243633714.

Almost surely, 2^145205516234 is an apocalyptic number.

145205516234 is a deficient number, since it is larger than the sum of its proper divisors (74064559066).

145205516234 is a wasteful number, since it uses less digits than its factorization.

145205516234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487266984.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 145205516234 in words is "one hundred forty-five billion, two hundred five million, five hundred sixteen thousand, two hundred thirty-four".