82145925 has 36 divisors (see below), whose sum is σ = 147710784. Its totient is φ = 43639200.

The previous prime is 82145909. The next prime is 82145927. The reversal of 82145925 is 52954128.

It is not a de Polignac number, because 82145925 - 2⁴ = 82145909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82145925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82145927) 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 35 ways as a sum of consecutive naturals, for example, 73924 + ... + 75026.

Almost surely, 2^82145925 is an apocalyptic number.

It is an amenable number.

82145925 is a deficient number, since it is larger than the sum of its proper divisors (65564859).

82145925 is a wasteful number, since it uses less digits than its factorization.

82145925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 1442 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 82145925 is about 9063.4389168792. The cubic root of 82145925 is about 434.7057066125.

The spelling of 82145925 in words is "eighty-two million, one hundred forty-five thousand, nine hundred twenty-five".