1022004145 has 4 divisors (see below), whose sum is σ = 1226404980. Its totient is φ = 817603312.

The previous prime is 1022004073. The next prime is 1022004163. The reversal of 1022004145 is 5414002201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 549246096 + 472758049 = 23436^2 + 21743^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022004145 - 2⁷ = 1022004017 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 102200410 + ... + 102200419.

It is an arithmetic number, because the mean of its divisors is an integer number (306601245).

Almost surely, 2^1022004145 is an apocalyptic number.

It is an amenable number.

1022004145 is a deficient number, since it is larger than the sum of its proper divisors (204400835).

1022004145 is an equidigital number, since it uses as much as digits as its factorization.

1022004145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204400834.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1022004145 is about 31968.7995551913. The cubic root of 1022004145 is about 1007.2815651170.

Adding to 1022004145 its reverse (5414002201), we get a palindrome (6436006346).

The spelling of 1022004145 in words is "one billion, twenty-two million, four thousand, one hundred forty-five".