71975132 has 24 divisors (see below), whose sum is σ = 127456560. Its totient is φ = 35562240.

The previous prime is 71975081. The next prime is 71975147. The reversal of 71975132 is 23157917.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71975092 and 71975101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189719 + ... + 190097.

It is an arithmetic number, because the mean of its divisors is an integer number (5310690).

Almost surely, 2^71975132 is an apocalyptic number.

It is an amenable number.

71975132 is a deficient number, since it is larger than the sum of its proper divisors (55481428).

71975132 is a wasteful number, since it uses less digits than its factorization.

71975132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its digits is 13230, while the sum is 35.

The square root of 71975132 is about 8483.8158867340. The cubic root of 71975132 is about 415.9688632391.

The spelling of 71975132 in words is "seventy-one million, nine hundred seventy-five thousand, one hundred thirty-two".