135511135542 has 24 divisors (see below), whose sum is σ = 304481811816. Its totient is φ = 45170378352.

The previous prime is 135511135537. The next prime is 135511135547. The reversal of 135511135542 is 245531115531.

135511135542 is a `hidden beast` number, since 1 + 3 + 5 + 511 + 135 + 5 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (135511135537) and next prime (135511135547).

It is a junction number, because it is equal to n+sod(n) for n = 135511135497 and 135511135506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135511135547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139414263 + ... + 139415234.

It is an arithmetic number, because the mean of its divisors is an integer number (12686742159).

Almost surely, 2^135511135542 is an apocalyptic number.

135511135542 is an abundant number, since it is smaller than the sum of its proper divisors (168970676274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135511135542 is an equidigital number, since it uses as much as digits as its factorization.

135511135542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278829514 (or 278829502 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The spelling of 135511135542 in words is "one hundred thirty-five billion, five hundred eleven million, one hundred thirty-five thousand, five hundred forty-two".