135241170523 has 4 divisors (see below), whose sum is σ = 135297266328. Its totient is φ = 135185074720.

The previous prime is 135241170497. The next prime is 135241170557. The reversal of 135241170523 is 325071142531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325071142531 = 79 ⋅4114824589.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135241170523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135241170563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28044286 + ... + 28049107.

It is an arithmetic number, because the mean of its divisors is an integer number (33824316582).

Almost surely, 2^135241170523 is an apocalyptic number.

135241170523 is a deficient number, since it is larger than the sum of its proper divisors (56095805).

135241170523 is an equidigital number, since it uses as much as digits as its factorization.

135241170523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56095804.

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

The spelling of 135241170523 in words is "one hundred thirty-five billion, two hundred forty-one million, one hundred seventy thousand, five hundred twenty-three".