145036224225 has 18 divisors (see below), whose sum is σ = 259775993126. Its totient is φ = 77352652800.

The previous prime is 145036224131. The next prime is 145036224247. The reversal of 145036224225 is 522422630541.

145036224225 is a `hidden beast` number, since 1 + 4 + 5 + 0 + 3 + 622 + 4 + 2 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 48519753984 + 96516470241 = 220272^2 + 310671^2 .

It is not a de Polignac number, because 145036224225 - 2⁷ = 145036224097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145036224225.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 322302496 + ... + 322302945.

Almost surely, 2^145036224225 is an apocalyptic number.

145036224225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145036224225 is a deficient number, since it is larger than the sum of its proper divisors (114739768901).

145036224225 is a wasteful number, since it uses less digits than its factorization.

145036224225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644605457 (or 644605449 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 145036224225 its reverse (522422630541), we get a palindrome (667458854766).

The spelling of 145036224225 in words is "one hundred forty-five billion, thirty-six million, two hundred twenty-four thousand, two hundred twenty-five".