74737161 has 10 divisors (see below), whose sum is σ = 111644522. Its totient is φ = 49824720.

The previous prime is 74737141. The next prime is 74737163. The reversal of 74737161 is 16173747.

It can be written as a sum of positive squares in only one way, i.e., 49787136 + 24950025 = 7056^2 + 4995^2 .

It is not a de Polignac number, because 74737161 - 2¹⁴ = 74720777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74737163) 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 9 ways as a sum of consecutive naturals, for example, 461260 + ... + 461421.

Almost surely, 2^74737161 is an apocalyptic number.

It is an amenable number.

74737161 is a deficient number, since it is larger than the sum of its proper divisors (36907361).

74737161 is an equidigital number, since it uses as much as digits as its factorization.

74737161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922693 (or 922684 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 74737161 is about 8645.0657024687. The cubic root of 74737161 is about 421.2231182675.

The spelling of 74737161 in words is "seventy-four million, seven hundred thirty-seven thousand, one hundred sixty-one".