73051249 has 2 divisors, whose sum is σ = 73051250. Its totient is φ = 73051248.

The previous prime is 73051241. The next prime is 73051259. The reversal of 73051249 is 94215037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69422224 + 3629025 = 8332^2 + 1905^2 .

It is a cyclic number.

It is not a de Polignac number, because 73051249 - 2³ = 73051241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73051249.

It is not a weakly prime, because it can be changed into another prime (73051241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36525624 + 36525625.

It is an arithmetic number, because the mean of its divisors is an integer number (36525625).

Almost surely, 2^73051249 is an apocalyptic number.

It is an amenable number.

73051249 is a deficient number, since it is larger than the sum of its proper divisors (1).

73051249 is an equidigital number, since it uses as much as digits as its factorization.

73051249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 73051249 is about 8547.0023400020. The cubic root of 73051249 is about 418.0316990223.

The spelling of 73051249 in words is "seventy-three million, fifty-one thousand, two hundred forty-nine".