82136077 has 2 divisors, whose sum is σ = 82136078. Its totient is φ = 82136076.

The previous prime is 82136057. The next prime is 82136099. The reversal of 82136077 is 77063128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53202436 + 28933641 = 7294^2 + 5379^2 .

It is a cyclic number.

It is not a de Polignac number, because 82136077 - 2¹⁵ = 82103309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82136017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41068038 + 41068039.

It is an arithmetic number, because the mean of its divisors is an integer number (41068039).

Almost surely, 2^82136077 is an apocalyptic number.

It is an amenable number.

82136077 is a deficient number, since it is larger than the sum of its proper divisors (1).

82136077 is an equidigital number, since it uses as much as digits as its factorization.

82136077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 82136077 is about 9062.8956189509. The cubic root of 82136077 is about 434.6883344670.

The spelling of 82136077 in words is "eighty-two million, one hundred thirty-six thousand, seventy-seven".