1020522173 has 8 divisors (see below), whose sum is σ = 1113732480. Its totient is φ = 927384480.

The previous prime is 1020522169. The next prime is 1020522193. The reversal of 1020522173 is 3712250201.

It is a happy number.

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

It is not a de Polignac number, because 1020522173 - 2² = 1020522169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020522193) 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, 13673 + ... + 47201.

It is an arithmetic number, because the mean of its divisors is an integer number (139216560).

Almost surely, 2^1020522173 is an apocalyptic number.

It is an amenable number.

1020522173 is a deficient number, since it is larger than the sum of its proper divisors (93210307).

1020522173 is a wasteful number, since it uses less digits than its factorization.

1020522173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36307.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1020522173 is about 31945.6127347716. The cubic root of 1020522173 is about 1006.7944551580.

Adding to 1020522173 its reverse (3712250201), we get a palindrome (4732772374).

The spelling of 1020522173 in words is "one billion, twenty million, five hundred twenty-two thousand, one hundred seventy-three".