135779837 has 2 divisors, whose sum is σ = 135779838. Its totient is φ = 135779836.

The previous prime is 135779821. The next prime is 135779849. The reversal of 135779837 is 738977531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103449241 + 32330596 = 10171^2 + 5686^2 .

It is a cyclic number.

It is not a de Polignac number, because 135779837 - 2⁴ = 135779821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135779807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67889918 + 67889919.

It is an arithmetic number, because the mean of its divisors is an integer number (67889919).

Almost surely, 2^135779837 is an apocalyptic number.

It is an amenable number.

135779837 is a deficient number, since it is larger than the sum of its proper divisors (1).

135779837 is an equidigital number, since it uses as much as digits as its factorization.

135779837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111320, while the sum is 50.

The square root of 135779837 is about 11652.4605556080. The cubic root of 135779837 is about 513.9786677294.

The spelling of 135779837 in words is "one hundred thirty-five million, seven hundred seventy-nine thousand, eight hundred thirty-seven".