1020567 has 8 divisors (see below), whose sum is σ = 1373680. Its totient is φ = 673920.

The previous prime is 1020557. The next prime is 1020583. The reversal of 1020567 is 7650201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1020567 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 (1020517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234 + ... + 1887.

It is an arithmetic number, because the mean of its divisors is an integer number (171710).

2^1020567 is an apocalyptic number.

1020567 is a deficient number, since it is larger than the sum of its proper divisors (353113).

1020567 is a wasteful number, since it uses less digits than its factorization.

1020567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1020567 is about 1010.2311616655. The cubic root of 1020567 is about 100.6809196276.

Adding to 1020567 its reverse (7650201), we get a palindrome (8670768).

The spelling of 1020567 in words is "one million, twenty thousand, five hundred sixty-seven".