136801477 has 2 divisors, whose sum is σ = 136801478. Its totient is φ = 136801476.

The previous prime is 136801393. The next prime is 136801517. The reversal of 136801477 is 774108631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125417601 + 11383876 = 11199^2 + 3374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136801477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136801177) 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, 68400738 + 68400739.

It is an arithmetic number, because the mean of its divisors is an integer number (68400739).

Almost surely, 2^136801477 is an apocalyptic number.

It is an amenable number.

136801477 is a deficient number, since it is larger than the sum of its proper divisors (1).

136801477 is an equidigital number, since it uses as much as digits as its factorization.

136801477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 136801477 is about 11696.2163540181. The cubic root of 136801477 is about 515.2645475276.

The spelling of 136801477 in words is "one hundred thirty-six million, eight hundred one thousand, four hundred seventy-seven".