73175119081 has 3 divisors (see below), whose sum is σ = 73175389591. Its totient is φ = 73174848572.

The previous prime is 73175119067. The next prime is 73175119097. The reversal of 73175119081 is 18091157137.

The square root of 73175119081 is 270509.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18091157137 = 33619 ⋅538123.

It can be written as a sum of positive squares in only one way, i.e., 34766958681 + 38408160400 = 186459^2 + 195980^2 .

It is a de Polignac number, because none of the positive numbers 2^k-73175119081 is a prime.

It is a super-2 number, since 2×73175119081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73175119051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 135255 + ... + 405763.

Almost surely, 2^73175119081 is an apocalyptic number.

73175119081 is the 270509-th square number.

73175119081 is the 135255-th centered octagonal number.

It is an amenable number.

73175119081 is a deficient number, since it is larger than the sum of its proper divisors (270510).

73175119081 is an frugal number, since it uses more digits than its factorization.

73175119081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541018 (or 270509 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 43.

The spelling of 73175119081 in words is "seventy-three billion, one hundred seventy-five million, one hundred nineteen thousand, eighty-one".