82307144 has 8 divisors (see below), whose sum is σ = 154325910. Its totient is φ = 41153568.

The previous prime is 82307143. The next prime is 82307171. The reversal of 82307144 is 44170328.

It can be written as a sum of positive squares in only one way, i.e., 66227044 + 16080100 = 8138^2 + 4010^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (82307143) 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 as a sum of consecutive naturals, namely, 5144189 + ... + 5144204.

Almost surely, 2^82307144 is an apocalyptic number.

It is an amenable number.

82307144 is a deficient number, since it is larger than the sum of its proper divisors (72018766).

82307144 is a wasteful number, since it uses less digits than its factorization.

82307144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10288399 (or 10288395 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 82307144 is about 9072.3284772984. The cubic root of 82307144 is about 434.9899042004.

The spelling of 82307144 in words is "eighty-two million, three hundred seven thousand, one hundred forty-four".