74319453 has 18 divisors (see below), whose sum is σ = 115753274. Its totient is φ = 45677664.

The previous prime is 74319451. The next prime is 74319467. The reversal of 74319453 is 35491347.

It can be written as a sum of positive squares in 3 ways, for example, as 2442969 + 71876484 = 1563^2 + 8478^2 .

It is not a de Polignac number, because 74319453 - 2¹ = 74319451 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74319451) 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 in 17 ways as a sum of consecutive naturals, for example, 92851 + ... + 93647.

Almost surely, 2^74319453 is an apocalyptic number.

It is an amenable number.

74319453 is a deficient number, since it is larger than the sum of its proper divisors (41433821).

74319453 is an equidigital number, since it uses as much as digits as its factorization.

74319453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613 (or 813 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 74319453 is about 8620.8730996344. The cubic root of 74319453 is about 420.4369092886.

The spelling of 74319453 in words is "seventy-four million, three hundred nineteen thousand, four hundred fifty-three".