71009148 has 24 divisors (see below), whose sum is σ = 189357952. Its totient is φ = 20288304.

The previous prime is 71009143. The next prime is 71009149. The reversal of 71009148 is 84190017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71009143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422590 + ... + 422757.

Almost surely, 2^71009148 is an apocalyptic number.

It is an amenable number.

71009148 is an abundant number, since it is smaller than the sum of its proper divisors (118348804).

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

71009148 is a wasteful number, since it uses less digits than its factorization.

71009148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845361 (or 845359 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 71009148 is about 8426.6925896226. The cubic root of 71009148 is about 414.0995583104.

The spelling of 71009148 in words is "seventy-one million, nine thousand, one hundred forty-eight".