134775517 has 2 divisors, whose sum is σ = 134775518. Its totient is φ = 134775516.

The previous prime is 134775491. The next prime is 134775527. The reversal of 134775517 is 715577431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134304921 + 470596 = 11589^2 + 686^2 .

It is an emirp because it is prime and its reverse (715577431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134775517 - 2²⁷ = 557789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134775517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134775527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67387758 + 67387759.

It is an arithmetic number, because the mean of its divisors is an integer number (67387759).

Almost surely, 2^134775517 is an apocalyptic number.

It is an amenable number.

134775517 is a deficient number, since it is larger than the sum of its proper divisors (1).

134775517 is an equidigital number, since it uses as much as digits as its factorization.

134775517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102900, while the sum is 40.

The square root of 134775517 is about 11609.2858092132. The cubic root of 134775517 is about 512.7082851193.

The spelling of 134775517 in words is "one hundred thirty-four million, seven hundred seventy-five thousand, five hundred seventeen".