74360549 has 2 divisors, whose sum is σ = 74360550. Its totient is φ = 74360548.

The previous prime is 74360527. The next prime is 74360551. The reversal of 74360549 is 94506347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72420100 + 1940449 = 8510^2 + 1393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74360549 is a prime.

It is a Sophie Germain prime.

Together with 74360551, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74360569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37180274 + 37180275.

It is an arithmetic number, because the mean of its divisors is an integer number (37180275).

Almost surely, 2^74360549 is an apocalyptic number.

It is an amenable number.

74360549 is a deficient number, since it is larger than the sum of its proper divisors (1).

74360549 is an equidigital number, since it uses as much as digits as its factorization.

74360549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 74360549 is about 8623.2562875053. The cubic root of 74360549 is about 420.5143905346.

The spelling of 74360549 in words is "seventy-four million, three hundred sixty thousand, five hundred forty-nine".