74109213 has 6 divisors (see below), whose sum is σ = 107046654. Its totient is φ = 49406136.

The previous prime is 74109193. The next prime is 74109229. The reversal of 74109213 is 31290147.

It can be written as a sum of positive squares in only one way, i.e., 44916804 + 29192409 = 6702^2 + 5403^2 .

It is not a de Polignac number, because 74109213 - 2¹³ = 74101021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74109293) 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 5 ways as a sum of consecutive naturals, for example, 4117170 + ... + 4117187.

It is an arithmetic number, because the mean of its divisors is an integer number (17841109).

Almost surely, 2^74109213 is an apocalyptic number.

It is an amenable number.

74109213 is a deficient number, since it is larger than the sum of its proper divisors (32937441).

74109213 is a wasteful number, since it uses less digits than its factorization.

74109213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234363 (or 8234360 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 74109213 is about 8608.6708033238. The cubic root of 74109213 is about 420.0400812089.

The spelling of 74109213 in words is "seventy-four million, one hundred nine thousand, two hundred thirteen".