71340178 has 24 divisors (see below), whose sum is σ = 134059212. Its totient is φ = 28221984.

The previous prime is 71340163. The next prime is 71340179. The reversal of 71340178 is 87104317.

It can be written as a sum of positive squares in 2 ways, for example, as 67190809 + 4149369 = 8197^2 + 2037^2 .

It is not an unprimeable number, because it can be changed into a prime (71340179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26725 + ... + 29272.

Almost surely, 2^71340178 is an apocalyptic number.

71340178 is a deficient number, since it is larger than the sum of its proper divisors (62719034).

71340178 is a wasteful number, since it uses less digits than its factorization.

71340178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56026 (or 56019 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 71340178 is about 8446.3115026620. The cubic root of 71340178 is about 414.7420432046.

The spelling of 71340178 in words is "seventy-one million, three hundred forty thousand, one hundred seventy-eight".