74360161 has 4 divisors (see below), whose sum is σ = 74559892. Its totient is φ = 74160432.

The previous prime is 74360141. The next prime is 74360171. The reversal of 74360161 is 16106347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16106347 = 139 ⋅115873.

It can be written as a sum of positive squares in 2 ways, for example, as 62110161 + 12250000 = 7881^2 + 3500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74360161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74360141) 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 3 ways as a sum of consecutive naturals, for example, 99306 + ... + 100051.

It is an arithmetic number, because the mean of its divisors is an integer number (18639973).

Almost surely, 2^74360161 is an apocalyptic number.

It is an amenable number.

74360161 is a deficient number, since it is larger than the sum of its proper divisors (199731).

74360161 is a wasteful number, since it uses less digits than its factorization.

74360161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199730.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 74360161 is about 8623.2337901741. The cubic root of 74360161 is about 420.5136591437.

The spelling of 74360161 in words is "seventy-four million, three hundred sixty thousand, one hundred sixty-one".