73253231 has 2 divisors, whose sum is σ = 73253232. Its totient is φ = 73253230.

The previous prime is 73253149. The next prime is 73253233. The reversal of 73253231 is 13235237.

It is a strong prime.

It is an emirp because it is prime and its reverse (13235237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73253231 - 2¹⁴ = 73236847 is a prime.

It is a super-2 number, since 2×73253231² = 10732071703878722, which contains 22 as substring.

Together with 73253233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73253231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73253233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36626615 + 36626616.

It is an arithmetic number, because the mean of its divisors is an integer number (36626616).

Almost surely, 2^73253231 is an apocalyptic number.

73253231 is a deficient number, since it is larger than the sum of its proper divisors (1).

73253231 is an equidigital number, since it uses as much as digits as its factorization.

73253231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 26.

The square root of 73253231 is about 8558.8101392659. The cubic root of 73253231 is about 418.4166213889.

Adding to 73253231 its reverse (13235237), we get a palindrome (86488468).

The spelling of 73253231 in words is "seventy-three million, two hundred fifty-three thousand, two hundred thirty-one".