136504043 has 4 divisors (see below), whose sum is σ = 147004368. Its totient is φ = 126003720.

The previous prime is 136504007. The next prime is 136504061. The reversal of 136504043 is 340405631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340405631 = 47 ⋅7242673.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136504043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136504243) 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, 5250143 + ... + 5250168.

It is an arithmetic number, because the mean of its divisors is an integer number (36751092).

Almost surely, 2^136504043 is an apocalyptic number.

136504043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136504043 is a deficient number, since it is larger than the sum of its proper divisors (10500325).

136504043 is a wasteful number, since it uses less digits than its factorization.

136504043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500324.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 136504043 is about 11683.4944686939. The cubic root of 136504043 is about 514.8908468829.

Adding to 136504043 its reverse (340405631), we get a palindrome (476909674).

It can be divided in two parts, 13 and 6504043, that added together give a palindrome (6504056).

The spelling of 136504043 in words is "one hundred thirty-six million, five hundred four thousand, forty-three".