45145301645 has 8 divisors (see below), whose sum is σ = 54176869656. Its totient is φ = 36114569536.

The previous prime is 45145301639. The next prime is 45145301647. The reversal of 45145301645 is 54610354154.

It can be written as a sum of positive squares in 4 ways, for example, as 758396521 + 44386905124 = 27539^2 + 210682^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45145301645 is a prime.

It is a super-4 number, since 4×45145301645⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45145301599 and 45145301608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45145301647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 83282 + ... + 311811.

It is an arithmetic number, because the mean of its divisors is an integer number (6772108707).

Almost surely, 2^45145301645 is an apocalyptic number.

It is an amenable number.

45145301645 is a deficient number, since it is larger than the sum of its proper divisors (9031568011).

45145301645 is a wasteful number, since it uses less digits than its factorization.

45145301645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417951.

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

Adding to 45145301645 its reverse (54610354154), we get a palindrome (99755655799).

The spelling of 45145301645 in words is "forty-five billion, one hundred forty-five million, three hundred one thousand, six hundred forty-five".