1022065045 has 8 divisors (see below), whose sum is σ = 1226659896. Its totient is φ = 817530816.

The previous prime is 1022065039. The next prime is 1022065049. The reversal of 1022065045 is 5405602201.

It can be written as a sum of positive squares in 4 ways, for example, as 582449956 + 439615089 = 24134^2 + 20967^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1022065045 - 2⁷ = 1022064917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022065049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40579 + ... + 60751.

It is an arithmetic number, because the mean of its divisors is an integer number (153332487).

Almost surely, 2^1022065045 is an apocalyptic number.

It is an amenable number.

1022065045 is a deficient number, since it is larger than the sum of its proper divisors (204594851).

1022065045 is a wasteful number, since it uses less digits than its factorization.

1022065045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30311.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1022065045 is about 31969.7520321944. The cubic root of 1022065045 is about 1007.3015722860.

Adding to 1022065045 its reverse (5405602201), we get a palindrome (6427667246).

The spelling of 1022065045 in words is "one billion, twenty-two million, sixty-five thousand, forty-five".