136547028157 has 2 divisors, whose sum is σ = 136547028158. Its totient is φ = 136547028156.

The previous prime is 136547028151. The next prime is 136547028181. The reversal of 136547028157 is 751820745631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116080578436 + 20466449721 = 340706^2 + 143061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136547028157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136547028157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136547028151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68273514078 + 68273514079.

It is an arithmetic number, because the mean of its divisors is an integer number (68273514079).

Almost surely, 2^136547028157 is an apocalyptic number.

It is an amenable number.

136547028157 is a deficient number, since it is larger than the sum of its proper divisors (1).

136547028157 is an equidigital number, since it uses as much as digits as its factorization.

136547028157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 136547028157 in words is "one hundred thirty-six billion, five hundred forty-seven million, twenty-eight thousand, one hundred fifty-seven".