73531049 has 2 divisors, whose sum is σ = 73531050. Its totient is φ = 73531048.

The previous prime is 73531043. The next prime is 73531057. The reversal of 73531049 is 94013537.

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., 64722025 + 8809024 = 8045^2 + 2968^2 .

It is an emirp because it is prime and its reverse (94013537) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73531049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (73531043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36765524 + 36765525.

It is an arithmetic number, because the mean of its divisors is an integer number (36765525).

Almost surely, 2^73531049 is an apocalyptic number.

It is an amenable number.

73531049 is a deficient number, since it is larger than the sum of its proper divisors (1).

73531049 is an equidigital number, since it uses as much as digits as its factorization.

73531049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 73531049 is about 8575.0247229964. The cubic root of 73531049 is about 418.9449121874.

The spelling of 73531049 in words is "seventy-three million, five hundred thirty-one thousand, forty-nine".