134538149 has 2 divisors, whose sum is σ = 134538150. Its totient is φ = 134538148.

The previous prime is 134538101. The next prime is 134538169. The reversal of 134538149 is 941835431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118417924 + 16120225 = 10882^2 + 4015^2 .

It is a cyclic number.

It is not a de Polignac number, because 134538149 - 2²⁴ = 117760933 is a prime.

It is a Sophie Germain 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 (134538169) 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, 67269074 + 67269075.

It is an arithmetic number, because the mean of its divisors is an integer number (67269075).

Almost surely, 2^134538149 is an apocalyptic number.

It is an amenable number.

134538149 is a deficient number, since it is larger than the sum of its proper divisors (1).

134538149 is an equidigital number, since it uses as much as digits as its factorization.

134538149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 134538149 is about 11599.0581083121. The cubic root of 134538149 is about 512.4071125728.

The spelling of 134538149 in words is "one hundred thirty-four million, five hundred thirty-eight thousand, one hundred forty-nine".