135054123 has 16 divisors (see below), whose sum is σ = 187953696. Its totient is φ = 86178560.

The previous prime is 135054089. The next prime is 135054149. The reversal of 135054123 is 321450531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135054123 is a prime.

It is a super-2 number, since 2×135054123² = 36479232278598258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135054093 and 135054102.

It is not an unprimeable number, because it can be changed into a prime (135054163) 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 in 15 ways as a sum of consecutive naturals, for example, 3840 + ... + 16877.

It is an arithmetic number, because the mean of its divisors is an integer number (11747106).

Almost surely, 2^135054123 is an apocalyptic number.

135054123 is a deficient number, since it is larger than the sum of its proper divisors (52899573).

135054123 is a wasteful number, since it uses less digits than its factorization.

135054123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20814.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 135054123 is about 11621.2788883152. The cubic root of 135054123 is about 513.0613296793.

The spelling of 135054123 in words is "one hundred thirty-five million, fifty-four thousand, one hundred twenty-three".