135042059 has 4 divisors (see below), whose sum is σ = 138182616. Its totient is φ = 131901504.

The previous prime is 135042041. The next prime is 135042143. The reversal of 135042059 is 950240531.

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

It is a cyclic number.

It is not a de Polignac number, because 135042059 - 2¹² = 135037963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135042659) 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, 1570214 + ... + 1570299.

It is an arithmetic number, because the mean of its divisors is an integer number (34545654).

Almost surely, 2^135042059 is an apocalyptic number.

135042059 is a deficient number, since it is larger than the sum of its proper divisors (3140557).

135042059 is an equidigital number, since it uses as much as digits as its factorization.

135042059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140556.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 135042059 is about 11620.7598288580. The cubic root of 135042059 is about 513.0460524555.

The spelling of 135042059 in words is "one hundred thirty-five million, forty-two thousand, fifty-nine".