71432132 has 12 divisors (see below), whose sum is σ = 125094060. Its totient is φ = 35690976.

The previous prime is 71432131. The next prime is 71432173. The reversal of 71432132 is 23123417.

It can be written as a sum of positive squares in 2 ways, for example, as 7974976 + 63457156 = 2824^2 + 7966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71432098 and 71432107.

It is not an unprimeable number, because it can be changed into a prime (71432131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1094 + ... + 12002.

It is an arithmetic number, because the mean of its divisors is an integer number (10424505).

Almost surely, 2^71432132 is an apocalyptic number.

It is an amenable number.

71432132 is a deficient number, since it is larger than the sum of its proper divisors (53661928).

71432132 is a wasteful number, since it uses less digits than its factorization.

71432132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12550 (or 12548 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 71432132 is about 8451.7531909066. The cubic root of 71432132 is about 414.9201607674.

Adding to 71432132 its reverse (23123417), we get a palindrome (94555549).

The spelling of 71432132 in words is "seventy-one million, four hundred thirty-two thousand, one hundred thirty-two".