135234354523 has 4 divisors (see below), whose sum is σ = 139596753088. Its totient is φ = 130871955960.

The previous prime is 135234354517. The next prime is 135234354529. The reversal of 135234354523 is 325453432531.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (135234354517) and next prime (135234354529).

It is a cyclic number.

It is not a de Polignac number, because 135234354523 - 2¹⁷ = 135234223451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135234354529) 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, 2181199236 + ... + 2181199297.

It is an arithmetic number, because the mean of its divisors is an integer number (34899188272).

Almost surely, 2^135234354523 is an apocalyptic number.

135234354523 is a deficient number, since it is larger than the sum of its proper divisors (4362398565).

135234354523 is an equidigital number, since it uses as much as digits as its factorization.

135234354523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362398564.

The product of its digits is 648000, while the sum is 40.

The spelling of 135234354523 in words is "one hundred thirty-five billion, two hundred thirty-four million, three hundred fifty-four thousand, five hundred twenty-three".