82125773 has 2 divisors, whose sum is σ = 82125774. Its totient is φ = 82125772.

The previous prime is 82125749. The next prime is 82125781. The reversal of 82125773 is 37752128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82119844 + 5929 = 9062^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 82125773 - 2¹⁸ = 81863629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82125473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41062886 + 41062887.

It is an arithmetic number, because the mean of its divisors is an integer number (41062887).

Almost surely, 2^82125773 is an apocalyptic number.

It is an amenable number.

82125773 is a deficient number, since it is larger than the sum of its proper divisors (1).

82125773 is an equidigital number, since it uses as much as digits as its factorization.

82125773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 35.

The square root of 82125773 is about 9062.3271293857. The cubic root of 82125773 is about 434.6701564383.

The spelling of 82125773 in words is "eighty-two million, one hundred twenty-five thousand, seven hundred seventy-three".