135426517 has 2 divisors, whose sum is σ = 135426518. Its totient is φ = 135426516.

The previous prime is 135426503. The next prime is 135426523. The reversal of 135426517 is 715624531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100781521 + 34644996 = 10039^2 + 5886^2 .

It is a cyclic number.

It is not a de Polignac number, because 135426517 - 2¹⁵ = 135393749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135426617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67713258 + 67713259.

It is an arithmetic number, because the mean of its divisors is an integer number (67713259).

Almost surely, 2^135426517 is an apocalyptic number.

It is an amenable number.

135426517 is a deficient number, since it is larger than the sum of its proper divisors (1).

135426517 is an equidigital number, since it uses as much as digits as its factorization.

135426517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 34.

The square root of 135426517 is about 11637.2899336572. The cubic root of 135426517 is about 513.5324633171.

The spelling of 135426517 in words is "one hundred thirty-five million, four hundred twenty-six thousand, five hundred seventeen".