82154532 has 12 divisors (see below), whose sum is σ = 191693936. Its totient is φ = 27384840.

The previous prime is 82154521. The next prime is 82154539. The reversal of 82154532 is 23545128.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 82154532.

It is not an unprimeable number, because it can be changed into a prime (82154539) by changing a digit.

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, 3423094 + ... + 3423117.

Almost surely, 2^82154532 is an apocalyptic number.

It is an amenable number.

82154532 is an abundant number, since it is smaller than the sum of its proper divisors (109539404).

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

82154532 is a wasteful number, since it uses less digits than its factorization.

82154532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846218 (or 6846216 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 82154532 is about 9063.9137242143. The cubic root of 82154532 is about 434.7208884626.

The spelling of 82154532 in words is "eighty-two million, one hundred fifty-four thousand, five hundred thirty-two".