135125543 has 8 divisors (see below), whose sum is σ = 154925088. Its totient is φ = 115449984.

The previous prime is 135125527. The next prime is 135125561. The reversal of 135125543 is 345521531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135125543 - 2⁴ = 135125527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135125593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28646 + ... + 33027.

It is an arithmetic number, because the mean of its divisors is an integer number (19365636).

Almost surely, 2^135125543 is an apocalyptic number.

135125543 is a deficient number, since it is larger than the sum of its proper divisors (19799545).

135125543 is an equidigital number, since it uses as much as digits as its factorization.

135125543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61993.

The product of its digits is 9000, while the sum is 29.

The square root of 135125543 is about 11624.3512937282. The cubic root of 135125543 is about 513.1517536318.

The spelling of 135125543 in words is "one hundred thirty-five million, one hundred twenty-five thousand, five hundred forty-three".