1022065005 has 48 divisors (see below), whose sum is σ = 1858792320. Its totient is φ = 476654976.

The previous prime is 1022065001. The next prime is 1022065039. The reversal of 1022065005 is 5005602201.

It is not a de Polignac number, because 1022065005 - 2² = 1022065001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022065001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63136 + ... + 77654.

It is an arithmetic number, because the mean of its divisors is an integer number (38724840).

Almost surely, 2^1022065005 is an apocalyptic number.

1022065005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022065005 is a deficient number, since it is larger than the sum of its proper divisors (836727315).

1022065005 is a wasteful number, since it uses less digits than its factorization.

1022065005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14578 (or 14559 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1022065005 is about 31969.7514066031. The cubic root of 1022065005 is about 1007.3015591453.

Adding to 1022065005 its reverse (5005602201), we get a palindrome (6027667206).

The spelling of 1022065005 in words is "one billion, twenty-two million, sixty-five thousand, five".