1020667205 has 16 divisors (see below), whose sum is σ = 1286216064. Its totient is φ = 776043840.

The previous prime is 1020667201. The next prime is 1020667211. The reversal of 1020667205 is 5027660201.

1020667205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020667205 - 2² = 1020667201 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 (1020667201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10211 + ... + 46320.

It is an arithmetic number, because the mean of its divisors is an integer number (80388504).

Almost surely, 2^1020667205 is an apocalyptic number.

It is an amenable number.

1020667205 is a deficient number, since it is larger than the sum of its proper divisors (265548859).

1020667205 is a wasteful number, since it uses less digits than its factorization.

1020667205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56716.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1020667205 is about 31947.8826371952. The cubic root of 1020667205 is about 1006.8421465917.

The spelling of 1020667205 in words is "one billion, twenty million, six hundred sixty-seven thousand, two hundred five".