74148401 has 2 divisors, whose sum is σ = 74148402. Its totient is φ = 74148400.

The previous prime is 74148391. The next prime is 74148433. The reversal of 74148401 is 10484147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73547776 + 600625 = 8576^2 + 775^2 .

It is an emirp because it is prime and its reverse (10484147) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74148401 - 2⁶ = 74148337 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_4347353 and since 74148401 and 4347353 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (74148461) 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, 37074200 + 37074201.

It is an arithmetic number, because the mean of its divisors is an integer number (37074201).

Almost surely, 2^74148401 is an apocalyptic number.

It is an amenable number.

74148401 is a deficient number, since it is larger than the sum of its proper divisors (1).

74148401 is an equidigital number, since it uses as much as digits as its factorization.

74148401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 74148401 is about 8610.9465797902. The cubic root of 74148401 is about 420.1141054294.

The spelling of 74148401 in words is "seventy-four million, one hundred forty-eight thousand, four hundred one".