822070145 has 8 divisors (see below), whose sum is σ = 1062367656. Its totient is φ = 607067136.

The previous prime is 822070103. The next prime is 822070153. The reversal of 822070145 is 541070228.

It can be written as a sum of positive squares in 4 ways, for example, as 9193024 + 812877121 = 3032^2 + 28511^2 .

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

It is not a de Polignac number, because 822070145 - 2¹⁰ = 822069121 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 6323552 + ... + 6323681.

It is an arithmetic number, because the mean of its divisors is an integer number (132795957).

Almost surely, 2^822070145 is an apocalyptic number.

It is an amenable number.

822070145 is a deficient number, since it is larger than the sum of its proper divisors (240297511).

822070145 is a wasteful number, since it uses less digits than its factorization.

822070145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12647251.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 822070145 is about 28671.7656414808. The cubic root of 822070145 is about 936.7771570597. Note that the first 3 decimals are identical.

The spelling of 822070145 in words is "eight hundred twenty-two million, seventy thousand, one hundred forty-five".