82174132 has 12 divisors (see below), whose sum is σ = 145287940. Its totient is φ = 40663296.

The previous prime is 82174109. The next prime is 82174133. The reversal of 82174132 is 23147128.

It can be written as a sum of positive squares in 2 ways, for example, as 62157456 + 20016676 = 7884^2 + 4474^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82174132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82174133) 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, 105507 + ... + 106282.

Almost surely, 2^82174132 is an apocalyptic number.

It is an amenable number.

82174132 is a deficient number, since it is larger than the sum of its proper divisors (63113808).

82174132 is a wasteful number, since it uses less digits than its factorization.

82174132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211890 (or 211888 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 82174132 is about 9064.9948703791. The cubic root of 82174132 is about 434.7554568615.

The spelling of 82174132 in words is "eighty-two million, one hundred seventy-four thousand, one hundred thirty-two".