82124945 has 16 divisors (see below), whose sum is σ = 112909440. Its totient is φ = 56173824.

The previous prime is 82124929. The next prime is 82124947. The reversal of 82124945 is 54942128.

It is not a de Polignac number, because 82124945 - 2⁴ = 82124929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (82124947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12446 + ... + 17864.

It is an arithmetic number, because the mean of its divisors is an integer number (7056840).

Almost surely, 2^82124945 is an apocalyptic number.

It is an amenable number.

82124945 is a deficient number, since it is larger than the sum of its proper divisors (30784495).

82124945 is a wasteful number, since it uses less digits than its factorization.

82124945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864.

The product of its digits is 23040, while the sum is 35.

The square root of 82124945 is about 9062.2814456405. The cubic root of 82124945 is about 434.6686956378.

The spelling of 82124945 in words is "eighty-two million, one hundred twenty-four thousand, nine hundred forty-five".