74061745 has 8 divisors (see below), whose sum is σ = 89012520. Its totient is φ = 59157120.

The previous prime is 74061727. The next prime is 74061749. The reversal of 74061745 is 54716047.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17631601 + 56430144 = 4199^2 + 7512^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-74061745 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74061745.

It is not an unprimeable number, because it can be changed into a prime (74061749) 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 7 ways as a sum of consecutive naturals, for example, 7900 + ... + 14509.

It is an arithmetic number, because the mean of its divisors is an integer number (11126565).

Almost surely, 2^74061745 is an apocalyptic number.

It is an amenable number.

74061745 is a deficient number, since it is larger than the sum of its proper divisors (14950775).

74061745 is a wasteful number, since it uses less digits than its factorization.

74061745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23075.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 74061745 is about 8605.9133739540. The cubic root of 74061745 is about 419.9503815155.

The spelling of 74061745 in words is "seventy-four million, sixty-one thousand, seven hundred forty-five".