135502043 has 4 divisors (see below), whose sum is σ = 135795168. Its totient is φ = 135208920.

The previous prime is 135502033. The next prime is 135502049. The reversal of 135502043 is 340205531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340205531 = 2293 ⋅148367.

It is a cyclic number.

It is not a de Polignac number, because 135502043 - 2⁴ = 135502027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135502049) 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, 145868 + ... + 146793.

It is an arithmetic number, because the mean of its divisors is an integer number (33948792).

Almost surely, 2^135502043 is an apocalyptic number.

135502043 is a deficient number, since it is larger than the sum of its proper divisors (293125).

135502043 is an equidigital number, since it uses as much as digits as its factorization.

135502043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293124.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 135502043 is about 11640.5344808561. The cubic root of 135502043 is about 513.6279095313.

Adding to 135502043 its reverse (340205531), we get a palindrome (475707574).

The spelling of 135502043 in words is "one hundred thirty-five million, five hundred two thousand, forty-three".