74516245 has 4 divisors (see below), whose sum is σ = 89419500. Its totient is φ = 59612992.

The previous prime is 74516243. The next prime is 74516249. The reversal of 74516245 is 54261547.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9778129 + 64738116 = 3127^2 + 8046^2 .

It is a cyclic number.

It is not a de Polignac number, because 74516245 - 2¹ = 74516243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74516245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74516243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7451620 + ... + 7451629.

It is an arithmetic number, because the mean of its divisors is an integer number (22354875).

Almost surely, 2^74516245 is an apocalyptic number.

It is an amenable number.

74516245 is a deficient number, since it is larger than the sum of its proper divisors (14903255).

74516245 is a wasteful number, since it uses less digits than its factorization.

74516245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14903254.

The product of its digits is 33600, while the sum is 34.

The square root of 74516245 is about 8632.2792471050. The cubic root of 74516245 is about 420.8076767245.

The spelling of 74516245 in words is "seventy-four million, five hundred sixteen thousand, two hundred forty-five".