135511554 has 16 divisors (see below), whose sum is σ = 275617440. Its totient is φ = 44404800.

The previous prime is 135511549. The next prime is 135511627. The reversal of 135511554 is 455115531.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 191047 + ... + 191754.

It is an arithmetic number, because the mean of its divisors is an integer number (17226090).

Almost surely, 2^135511554 is an apocalyptic number.

135511554 is an abundant number, since it is smaller than the sum of its proper divisors (140105886).

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

135511554 is a wasteful number, since it uses less digits than its factorization.

135511554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382865.

The product of its digits is 7500, while the sum is 30.

The square root of 135511554 is about 11640.9430030389. The cubic root of 135511554 is about 513.6399265721.

The spelling of 135511554 in words is "one hundred thirty-five million, five hundred eleven thousand, five hundred fifty-four".