73183381 has 2 divisors, whose sum is σ = 73183382. Its totient is φ = 73183380.

The previous prime is 73183379. The next prime is 73183387. The reversal of 73183381 is 18338137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41486481 + 31696900 = 6441^2 + 5630^2 .

It is an emirp because it is prime and its reverse (18338137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73183381 - 2¹ = 73183379 is a prime.

It is a super-2 number, since 2×73183381² = 10711614509182322, which contains 22 as substring.

Together with 73183379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73183387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36591690 + 36591691.

It is an arithmetic number, because the mean of its divisors is an integer number (36591691).

Almost surely, 2^73183381 is an apocalyptic number.

It is an amenable number.

73183381 is a deficient number, since it is larger than the sum of its proper divisors (1).

73183381 is an equidigital number, since it uses as much as digits as its factorization.

73183381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 73183381 is about 8554.7285754722. The cubic root of 73183381 is about 418.2835865495.

The spelling of 73183381 in words is "seventy-three million, one hundred eighty-three thousand, three hundred eighty-one".