71605132 has 12 divisors (see below), whose sum is σ = 125397720. Its totient is φ = 35777216.

The previous prime is 71605099. The next prime is 71605151. The reversal of 71605132 is 23150617.

It is a junction number, because it is equal to n+sod(n) for n = 71605097 and 71605106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948 + ... + 12004.

It is an arithmetic number, because the mean of its divisors is an integer number (10449810).

Almost surely, 2^71605132 is an apocalyptic number.

It is an amenable number.

71605132 is a deficient number, since it is larger than the sum of its proper divisors (53792588).

71605132 is a wasteful number, since it uses less digits than its factorization.

71605132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680 (or 12678 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 71605132 is about 8461.9815646218. The cubic root of 71605132 is about 415.2548528973.

Adding to 71605132 its reverse (23150617), we get a palindrome (94755749).

The spelling of 71605132 in words is "seventy-one million, six hundred five thousand, one hundred thirty-two".