82145764 has 24 divisors (see below), whose sum is σ = 146397888. Its totient is φ = 40324320.

The previous prime is 82145761. The next prime is 82145771. The reversal of 82145764 is 46754128.

It is not an unprimeable number, because it can be changed into a prime (82145761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59409 + ... + 60775.

It is an arithmetic number, because the mean of its divisors is an integer number (6099912).

Almost surely, 2^82145764 is an apocalyptic number.

It is an amenable number.

82145764 is a deficient number, since it is larger than the sum of its proper divisors (64252124).

82145764 is a wasteful number, since it uses less digits than its factorization.

82145764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635 (or 1633 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 82145764 is about 9063.4300350364. The cubic root of 82145764 is about 434.7054226152.

The spelling of 82145764 in words is "eighty-two million, one hundred forty-five thousand, seven hundred sixty-four".