1020602775 has 24 divisors (see below), whose sum is σ = 1688651344. Its totient is φ = 543916800.

The previous prime is 1020602753. The next prime is 1020602789. The reversal of 1020602775 is 5772060201.

It is not a de Polignac number, because 1020602775 - 2⁶ = 1020602711 is a prime.

It is a Duffinian number.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 115515 + ... + 124035.

Almost surely, 2^1020602775 is an apocalyptic number.

1020602775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020602775 is a deficient number, since it is larger than the sum of its proper divisors (668048569).

1020602775 is a wasteful number, since it uses less digits than its factorization.

1020602775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131 (or 10126 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1020602775 is about 31946.8742602465. The cubic root of 1020602775 is about 1006.8209603833.

Adding to 1020602775 its reverse (5772060201), we get a palindrome (6792662976).

The spelling of 1020602775 in words is "one billion, twenty million, six hundred two thousand, seven hundred seventy-five".