71123528 has 16 divisors (see below), whose sum is σ = 152407680. Its totient is φ = 30481488.

The previous prime is 71123491. The next prime is 71123531. The reversal of 71123528 is 82532117.

It is a self number, because there is not a number n which added to its sum of digits gives 71123528.

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, 634976 + ... + 635087.

It is an arithmetic number, because the mean of its divisors is an integer number (9525480).

Almost surely, 2^71123528 is an apocalyptic number.

It is an amenable number.

71123528 is an abundant number, since it is smaller than the sum of its proper divisors (81284152).

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

71123528 is a wasteful number, since it uses less digits than its factorization.

71123528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270076 (or 1270072 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 71123528 is about 8433.4766259236. The cubic root of 71123528 is about 414.3217799076.

The spelling of 71123528 in words is "seventy-one million, one hundred twenty-three thousand, five hundred twenty-eight".