71868146 has 64 divisors (see below), whose sum is σ = 143493120. Its totient is φ = 26231040.

The previous prime is 71868131. The next prime is 71868191. The reversal of 71868146 is 64186817.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 103661 + ... + 104351.

It is an arithmetic number, because the mean of its divisors is an integer number (2242080).

Almost surely, 2^71868146 is an apocalyptic number.

71868146 is a deficient number, since it is larger than the sum of its proper divisors (71624974).

71868146 is a wasteful number, since it uses less digits than its factorization.

71868146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 64512, while the sum is 41.

The square root of 71868146 is about 8477.5082424024. The cubic root of 71868146 is about 415.7626581609.

The spelling of 71868146 in words is "seventy-one million, eight hundred sixty-eight thousand, one hundred forty-six".