1020069 has 6 divisors (see below), whose sum is σ = 1473446. Its totient is φ = 680040.

The previous prime is 1020059. The next prime is 1020077. The reversal of 1020069 is 9600201.

1020069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 263169 = 870^2 + 513^2 .

It is not a de Polignac number, because 1020069 - 2⁵ = 1020037 is a prime.

It is a super-2 number, since 2×1020069² = 2081081529522, which contains 22 as substring.

It is a Duffinian number.

1020069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56662 + ... + 56679.

2^1020069 is an apocalyptic number.

It is an amenable number.

1020069 is a deficient number, since it is larger than the sum of its proper divisors (453377).

1020069 is a wasteful number, since it uses less digits than its factorization.

1020069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113347 (or 113344 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1020069 is about 1009.9846533488. The cubic root of 1020069 is about 100.6645407404.

The spelling of 1020069 in words is "one million, twenty thousand, sixty-nine".