71881114 has 4 divisors (see below), whose sum is σ = 107821674. Its totient is φ = 35940556.

The previous prime is 71881097. The next prime is 71881127. The reversal of 71881114 is 41118817.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71115489 + 765625 = 8433^2 + 875^2 .

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, 17970277 + ... + 17970280.

Almost surely, 2^71881114 is an apocalyptic number.

71881114 is a deficient number, since it is larger than the sum of its proper divisors (35940560).

71881114 is a wasteful number, since it uses less digits than its factorization.

71881114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35940559.

The product of its digits is 1792, while the sum is 31.

The square root of 71881114 is about 8478.2730552867. The cubic root of 71881114 is about 415.7876636105.

The spelling of 71881114 in words is "seventy-one million, eight hundred eighty-one thousand, one hundred fourteen".