82145332 has 12 divisors (see below), whose sum is σ = 144352516. Its totient is φ = 40901760.

The previous prime is 82145299. The next prime is 82145333. The reversal of 82145332 is 23354128.

It can be written as a sum of positive squares in 2 ways, for example, as 49928356 + 32216976 = 7066^2 + 5676^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 82145332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82145333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41643 + ... + 43570.

Almost surely, 2^82145332 is an apocalyptic number.

It is an amenable number.

82145332 is a deficient number, since it is larger than the sum of its proper divisors (62207184).

82145332 is a wasteful number, since it uses less digits than its factorization.

82145332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85458 (or 85456 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 82145332 is about 9063.4062029681. The cubic root of 82145332 is about 434.7046605833.

The spelling of 82145332 in words is "eighty-two million, one hundred forty-five thousand, three hundred thirty-two".