74131216 has 10 divisors (see below), whose sum is σ = 143629262. Its totient is φ = 37065600.

The previous prime is 74131207. The next prime is 74131241. The reversal of 74131216 is 61213147.

It can be written as a sum of positive squares in only one way, i.e., 74028816 + 102400 = 8604^2 + 320^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2316585 + ... + 2316616.

Almost surely, 2^74131216 is an apocalyptic number.

It is an amenable number.

74131216 is a deficient number, since it is larger than the sum of its proper divisors (69498046).

74131216 is a wasteful number, since it uses less digits than its factorization.

74131216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633209 (or 4633203 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 74131216 is about 8609.9486641907. The cubic root of 74131216 is about 420.0816470144.

It can be divided in two parts, 74131 and 216, that added together give a palindrome (74347).

The spelling of 74131216 in words is "seventy-four million, one hundred thirty-one thousand, two hundred sixteen".