136828057 has 2 divisors, whose sum is σ = 136828058. Its totient is φ = 136828056.

The previous prime is 136828051. The next prime is 136828129. The reversal of 136828057 is 750828631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103002201 + 33825856 = 10149^2 + 5816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136828057 is a prime.

It is not a weakly prime, because it can be changed into another prime (136828051) 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, 68414028 + 68414029.

It is an arithmetic number, because the mean of its divisors is an integer number (68414029).

Almost surely, 2^136828057 is an apocalyptic number.

It is an amenable number.

136828057 is a deficient number, since it is larger than the sum of its proper divisors (1).

136828057 is an equidigital number, since it uses as much as digits as its factorization.

136828057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 136828057 is about 11697.3525637214. The cubic root of 136828057 is about 515.2979166721.

The spelling of 136828057 in words is "one hundred thirty-six million, eight hundred twenty-eight thousand, fifty-seven".