135613043 has 4 divisors (see below), whose sum is σ = 135896640. Its totient is φ = 135329448.

The previous prime is 135613039. The next prime is 135613073. The reversal of 135613043 is 340316531.

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 135613043 - 2² = 135613039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135613073) 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, 141080 + ... + 142037.

It is an arithmetic number, because the mean of its divisors is an integer number (33974160).

Almost surely, 2^135613043 is an apocalyptic number.

135613043 is a deficient number, since it is larger than the sum of its proper divisors (283597).

135613043 is an equidigital number, since it uses as much as digits as its factorization.

135613043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283596.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 135613043 is about 11645.3013271448. The cubic root of 135613043 is about 513.7681217770.

Adding to 135613043 its reverse (340316531), we get a palindrome (475929574).

The spelling of 135613043 in words is "one hundred thirty-five million, six hundred thirteen thousand, forty-three".