1020643094 has 16 divisors (see below), whose sum is σ = 1594022976. Its totient is φ = 489710400.

The previous prime is 1020643087. The next prime is 1020643111. The reversal of 1020643094 is 4903460201.

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 7 ways as a sum of consecutive naturals, for example, 97022 + ... + 107025.

It is an arithmetic number, because the mean of its divisors is an integer number (99626436).

Almost surely, 2^1020643094 is an apocalyptic number.

1020643094 is a deficient number, since it is larger than the sum of its proper divisors (573379882).

1020643094 is a wasteful number, since it uses less digits than its factorization.

1020643094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204151.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1020643094 is about 31947.5052860157. The cubic root of 1020643094 is about 1006.8342183914.

The spelling of 1020643094 in words is "one billion, twenty million, six hundred forty-three thousand, ninety-four".