136757549 has 2 divisors, whose sum is σ = 136757550. Its totient is φ = 136757548.

The previous prime is 136757539. The next prime is 136757567. The reversal of 136757549 is 945757631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102616900 + 34140649 = 10130^2 + 5843^2 .

It is a cyclic number.

It is not a de Polignac number, because 136757549 - 2¹² = 136753453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136757539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68378774 + 68378775.

It is an arithmetic number, because the mean of its divisors is an integer number (68378775).

Almost surely, 2^136757549 is an apocalyptic number.

It is an amenable number.

136757549 is a deficient number, since it is larger than the sum of its proper divisors (1).

136757549 is an equidigital number, since it uses as much as digits as its factorization.

136757549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 47.

The square root of 136757549 is about 11694.3383310045. The cubic root of 136757549 is about 515.2093898284.

The spelling of 136757549 in words is "one hundred thirty-six million, seven hundred fifty-seven thousand, five hundred forty-nine".