73551241 has 2 divisors, whose sum is σ = 73551242. Its totient is φ = 73551240.

The previous prime is 73551239. The next prime is 73551271. The reversal of 73551241 is 14215537.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48511225 + 25040016 = 6965^2 + 5004^2 .

It is a cyclic number.

It is not a de Polignac number, because 73551241 - 2¹ = 73551239 is a prime.

Together with 73551239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73551211) 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, 36775620 + 36775621.

It is an arithmetic number, because the mean of its divisors is an integer number (36775621).

Almost surely, 2^73551241 is an apocalyptic number.

It is an amenable number.

73551241 is a deficient number, since it is larger than the sum of its proper divisors (1).

73551241 is an equidigital number, since it uses as much as digits as its factorization.

73551241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 28.

The square root of 73551241 is about 8576.2020148781. The cubic root of 73551241 is about 418.9832568122.

Adding to 73551241 its reverse (14215537), we get a palindrome (87766778).

The spelling of 73551241 in words is "seventy-three million, five hundred fifty-one thousand, two hundred forty-one".