71193285 has 24 divisors (see below), whose sum is σ = 129898080. Its totient is φ = 35970912.

The previous prime is 71193259. The next prime is 71193293. The reversal of 71193285 is 58239117.

It is not a de Polignac number, because 71193285 - 2⁵ = 71193253 is a prime.

It is a Curzon number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 40779 + ... + 42488.

It is an arithmetic number, because the mean of its divisors is an integer number (5412420).

Almost surely, 2^71193285 is an apocalyptic number.

It is an amenable number.

71193285 is a deficient number, since it is larger than the sum of its proper divisors (58704795).

71193285 is a wasteful number, since it uses less digits than its factorization.

71193285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83297 (or 83294 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 71193285 is about 8437.6113325988. The cubic root of 71193285 is about 414.4571893917.

It can be divided in two parts, 7119 and 3285, that added together give a square (10404 = 102²).

The spelling of 71193285 in words is "seventy-one million, one hundred ninety-three thousand, two hundred eighty-five".