135043511 has 4 divisors (see below), whose sum is σ = 140914992. Its totient is φ = 129172032.

The previous prime is 135043499. The next prime is 135043541. The reversal of 135043511 is 115340531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115340531 = 1213 ⋅95087.

It is a cyclic number.

It is not a de Polignac number, because 135043511 - 2¹⁴ = 135027127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 5871457 = 135043511 / (1 + 3 + 5 + 0 + 4 + 3 + 5 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135043541) 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 3 ways as a sum of consecutive naturals, for example, 2935706 + ... + 2935751.

It is an arithmetic number, because the mean of its divisors is an integer number (35228748).

Almost surely, 2^135043511 is an apocalyptic number.

135043511 is a deficient number, since it is larger than the sum of its proper divisors (5871481).

135043511 is an equidigital number, since it uses as much as digits as its factorization.

135043511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871480.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 135043511 is about 11620.8223030903. The cubic root of 135043511 is about 513.0478912411.

The spelling of 135043511 in words is "one hundred thirty-five million, forty-three thousand, five hundred eleven".