811045145 has 8 divisors (see below), whose sum is σ = 995888256. Its totient is φ = 633746736.

The previous prime is 811045099. The next prime is 811045171. The reversal of 811045145 is 541540118.

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-811045145 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885937 + ... + 1886366.

It is an arithmetic number, because the mean of its divisors is an integer number (124486032).

Almost surely, 2^811045145 is an apocalyptic number.

It is an amenable number.

811045145 is a deficient number, since it is larger than the sum of its proper divisors (184843111).

811045145 is a wasteful number, since it uses less digits than its factorization.

811045145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772351.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 811045145 is about 28478.8543484460. The cubic root of 811045145 is about 932.5705064481.

The spelling of 811045145 in words is "eight hundred eleven million, forty-five thousand, one hundred forty-five".