73213001 has 2 divisors, whose sum is σ = 73213002. Its totient is φ = 73213000.

The previous prime is 73212983. The next prime is 73213009. The reversal of 73213001 is 10031237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48720400 + 24492601 = 6980^2 + 4949^2 .

It is an emirp because it is prime and its reverse (10031237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73213001 - 2¹⁰ = 73211977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73213009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36606500 + 36606501.

It is an arithmetic number, because the mean of its divisors is an integer number (36606501).

Almost surely, 2^73213001 is an apocalyptic number.

It is an amenable number.

73213001 is a deficient number, since it is larger than the sum of its proper divisors (1).

73213001 is an equidigital number, since it uses as much as digits as its factorization.

73213001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 73213001 is about 8556.4596066364. The cubic root of 73213001 is about 418.3400105105.

Adding to 73213001 its reverse (10031237), we get a palindrome (83244238).

The spelling of 73213001 in words is "seventy-three million, two hundred thirteen thousand, one".