1073320173 has 16 divisors (see below), whose sum is σ = 1591398400. Its totient is φ = 714964320.

The previous prime is 1073320169. The next prime is 1073320207. The reversal of 1073320173 is 3710233701.

It is not a de Polignac number, because 1073320173 - 2² = 1073320169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073320123) 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, 18993 + ... + 50073.

It is an arithmetic number, because the mean of its divisors is an integer number (99462400).

Almost surely, 2^1073320173 is an apocalyptic number.

It is an amenable number.

1073320173 is a deficient number, since it is larger than the sum of its proper divisors (518078227).

1073320173 is a wasteful number, since it uses less digits than its factorization.

1073320173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32369 (or 32363 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 1073320173 is about 32761.5654845735. The cubic root of 1073320173 is about 1023.8659432077.

Adding to 1073320173 its reverse (3710233701), we get a palindrome (4783553874).

The spelling of 1073320173 in words is "one billion, seventy-three million, three hundred twenty thousand, one hundred seventy-three".