4681072145 has 8 divisors (see below), whose sum is σ = 5947715304. Its totient is φ = 3524571904.

The previous prime is 4681072117. The next prime is 4681072147. The reversal of 4681072145 is 5412701864.

It can be written as a sum of positive squares in 4 ways, for example, as 2689770769 + 1991301376 = 51863^2 + 44624^2 .

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-4681072145 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4681072099 and 4681072108.

It is not an unprimeable number, because it can be changed into a prime (4681072147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27535634 + ... + 27535803.

It is an arithmetic number, because the mean of its divisors is an integer number (743464413).

Almost surely, 2^4681072145 is an apocalyptic number.

It is an amenable number.

4681072145 is a deficient number, since it is larger than the sum of its proper divisors (1266643159).

4681072145 is a wasteful number, since it uses less digits than its factorization.

4681072145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55071459.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 4681072145 is about 68418.3611686220. The cubic root of 4681072145 is about 1672.8170443059.

The spelling of 4681072145 in words is "four billion, six hundred eighty-one million, seventy-two thousand, one hundred forty-five".