71146228 has 12 divisors (see below), whose sum is σ = 126364672. Its totient is φ = 35042040.

The previous prime is 71146219. The next prime is 71146267. The reversal of 71146228 is 82264117.

It is a self number, because there is not a number n which added to its sum of digits gives 71146228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132468 + ... + 133003.

Almost surely, 2^71146228 is an apocalyptic number.

It is an amenable number.

71146228 is a deficient number, since it is larger than the sum of its proper divisors (55218444).

71146228 is a wasteful number, since it uses less digits than its factorization.

71146228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265542 (or 265540 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 71146228 is about 8434.8223454913. The cubic root of 71146228 is about 414.3658539492.

The spelling of 71146228 in words is "seventy-one million, one hundred forty-six thousand, two hundred twenty-eight".