82149560 has 32 divisors (see below), whose sum is σ = 192875040. Its totient is φ = 31430784.

The previous prime is 82149533. The next prime is 82149563. The reversal of 82149560 is 6594128.

It is a self number, because there is not a number n which added to its sum of digits gives 82149560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82149563) 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 7 ways as a sum of consecutive naturals, for example, 43727 + ... + 45566.

It is an arithmetic number, because the mean of its divisors is an integer number (6027345).

Almost surely, 2^82149560 is an apocalyptic number.

It is an amenable number.

82149560 is an abundant number, since it is smaller than the sum of its proper divisors (110725480).

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

82149560 is a wasteful number, since it uses less digits than its factorization.

82149560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89327 (or 89323 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 82149560 is about 9063.6394456090. The cubic root of 82149560 is about 434.7121185027.

The spelling of 82149560 in words is "eighty-two million, one hundred forty-nine thousand, five hundred sixty".