73801249 has 2 divisors, whose sum is σ = 73801250. Its totient is φ = 73801248.

The previous prime is 73801223. The next prime is 73801253. The reversal of 73801249 is 94210837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73410624 + 390625 = 8568^2 + 625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73801249 is a prime.

It is not a weakly prime, because it can be changed into another prime (73801289) 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, 36900624 + 36900625.

It is an arithmetic number, because the mean of its divisors is an integer number (36900625).

Almost surely, 2^73801249 is an apocalyptic number.

It is an amenable number.

73801249 is a deficient number, since it is larger than the sum of its proper divisors (1).

73801249 is an equidigital number, since it uses as much as digits as its factorization.

73801249 is an odious number, because the sum of its binary digits is odd.

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

The square root of 73801249 is about 8590.7653326115. The cubic root of 73801249 is about 419.4574419018.

The spelling of 73801249 in words is "seventy-three million, eight hundred one thousand, two hundred forty-nine".