1020575564 has 12 divisors (see below), whose sum is σ = 1787038344. Its totient is φ = 509993184.

The previous prime is 1020575539. The next prime is 1020575581. The reversal of 1020575564 is 4655750201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65762 + ... + 79785.

It is an arithmetic number, because the mean of its divisors is an integer number (148919862).

Almost surely, 2^1020575564 is an apocalyptic number.

It is an amenable number.

1020575564 is a deficient number, since it is larger than the sum of its proper divisors (766462780).

1020575564 is a wasteful number, since it uses less digits than its factorization.

1020575564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147304 (or 147302 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1020575564 is about 31946.4483784974. The cubic root of 1020575564 is about 1006.8120124526.

The spelling of 1020575564 in words is "one billion, twenty million, five hundred seventy-five thousand, five hundred sixty-four".