71148885 has 16 divisors (see below), whose sum is σ = 114172800. Its totient is φ = 37834560.

The previous prime is 71148881. The next prime is 71148907. The reversal of 71148885 is 58884117.

It is not a de Polignac number, because 71148885 - 2² = 71148881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71148881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1561 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (7135800).

Almost surely, 2^71148885 is an apocalyptic number.

It is an amenable number.

71148885 is a deficient number, since it is larger than the sum of its proper divisors (43023915).

71148885 is a wasteful number, since it uses less digits than its factorization.

71148885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13948.

The product of its digits is 71680, while the sum is 42.

The square root of 71148885 is about 8434.9798458562. The cubic root of 71148885 is about 414.3710121349.

The spelling of 71148885 in words is "seventy-one million, one hundred forty-eight thousand, eight hundred eighty-five".