45512243145 has 40 divisors (see below), whose sum is σ = 81612956040. Its totient is φ = 24264852480.

The previous prime is 45512243131. The next prime is 45512243159. The reversal of 45512243145 is 54134221554.

45512243145 is a `hidden beast` number, since 4 + 551 + 22 + 43 + 1 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (45512243131) and next prime (45512243159).

It can be written as a sum of positive squares in 4 ways, for example, as 8528337801 + 36983905344 = 92349^2 + 192312^2 .

It is not a de Polignac number, because 45512243145 - 2⁴ = 45512243129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1265715 + ... + 1301175.

It is an arithmetic number, because the mean of its divisors is an integer number (2040323901).

Almost surely, 2^45512243145 is an apocalyptic number.

45512243145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45512243145 is a deficient number, since it is larger than the sum of its proper divisors (36100712895).

45512243145 is a wasteful number, since it uses less digits than its factorization.

45512243145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38647 (or 38638 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 45512243145 its reverse (54134221554), we get a palindrome (99646464699).

The spelling of 45512243145 in words is "forty-five billion, five hundred twelve million, two hundred forty-three thousand, one hundred forty-five".