71789148 has 18 divisors (see below), whose sum is σ = 181467104. Its totient is φ = 23929704.

The previous prime is 71789129. The next prime is 71789153. The reversal of 71789148 is 84198717.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 997036 + ... + 997107.

Almost surely, 2^71789148 is an apocalyptic number.

It is an amenable number.

71789148 is an abundant number, since it is smaller than the sum of its proper divisors (109677956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71789148 is a wasteful number, since it uses less digits than its factorization.

71789148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994153 (or 1994148 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The square root of 71789148 is about 8472.8476913019. The cubic root of 71789148 is about 415.6102658428.

The spelling of 71789148 in words is "seventy-one million, seven hundred eighty-nine thousand, one hundred forty-eight".