74118913 has 6 divisors (see below), whose sum is σ = 81469682. Its totient is φ = 67380720.

The previous prime is 74118911. The next prime is 74118973. The reversal of 74118913 is 31981147.

It can be written as a sum of positive squares in only one way, i.e., 64834704 + 9284209 = 8052^2 + 3047^2 .

It is not a de Polignac number, because 74118913 - 2¹ = 74118911 is a prime.

It is a super-2 number, since 2×74118913² = 10987226528603138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74118911) 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, 306156 + ... + 306397.

Almost surely, 2^74118913 is an apocalyptic number.

It is an amenable number.

74118913 is a deficient number, since it is larger than the sum of its proper divisors (7350769).

74118913 is a wasteful number, since it uses less digits than its factorization.

74118913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612575 (or 612564 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The square root of 74118913 is about 8609.2341703545. The cubic root of 74118913 is about 420.0584064655.

The spelling of 74118913 in words is "seventy-four million, one hundred eighteen thousand, nine hundred thirteen".