74511449 has 2 divisors, whose sum is σ = 74511450. Its totient is φ = 74511448.

The previous prime is 74511443. The next prime is 74511491. The reversal of 74511449 is 94411547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74511424 + 25 = 8632^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 74511449 - 2⁴ = 74511433 is a prime.

It is not a weakly prime, because it can be changed into another prime (74511443) 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, 37255724 + 37255725.

It is an arithmetic number, because the mean of its divisors is an integer number (37255725).

Almost surely, 2^74511449 is an apocalyptic number.

It is an amenable number.

74511449 is a deficient number, since it is larger than the sum of its proper divisors (1).

74511449 is an equidigital number, since it uses as much as digits as its factorization.

74511449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 74511449 is about 8632.0014481000. The cubic root of 74511449 is about 420.7986485503.

The spelling of 74511449 in words is "seventy-four million, five hundred eleven thousand, four hundred forty-nine".