136246125577 has 2 divisors, whose sum is σ = 136246125578. Its totient is φ = 136246125576.

The previous prime is 136246125571. The next prime is 136246125581. The reversal of 136246125577 is 775521642631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133304581881 + 2941543696 = 365109^2 + 54236^2 .

It is an emirp because it is prime and its reverse (775521642631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136246125577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136246125577.

It is not a weakly prime, because it can be changed into another prime (136246125571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68123062788 + 68123062789.

It is an arithmetic number, because the mean of its divisors is an integer number (68123062789).

Almost surely, 2^136246125577 is an apocalyptic number.

It is an amenable number.

136246125577 is a deficient number, since it is larger than the sum of its proper divisors (1).

136246125577 is an equidigital number, since it uses as much as digits as its factorization.

136246125577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 49.

The spelling of 136246125577 in words is "one hundred thirty-six billion, two hundred forty-six million, one hundred twenty-five thousand, five hundred seventy-seven".