135747149 has 2 divisors, whose sum is σ = 135747150. Its totient is φ = 135747148.

The previous prime is 135747113. The next prime is 135747167. The reversal of 135747149 is 941747531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135722500 + 24649 = 11650^2 + 157^2 .

It is a cyclic number.

It is not a de Polignac number, because 135747149 - 2²⁴ = 118969933 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135747049) 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, 67873574 + 67873575.

It is an arithmetic number, because the mean of its divisors is an integer number (67873575).

Almost surely, 2^135747149 is an apocalyptic number.

It is an amenable number.

135747149 is a deficient number, since it is larger than the sum of its proper divisors (1).

135747149 is an equidigital number, since it uses as much as digits as its factorization.

135747149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 135747149 is about 11651.0578489680. The cubic root of 135747149 is about 513.9374188874.

The spelling of 135747149 in words is "one hundred thirty-five million, seven hundred forty-seven thousand, one hundred forty-nine".