136343503 has 4 divisors (see below), whose sum is σ = 137035800. Its totient is φ = 135651208.

The previous prime is 136343489. The next prime is 136343521. The reversal of 136343503 is 305343631.

136343503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 136343503 - 2¹⁷ = 136212431 is a prime.

It is a super-2 number, since 2×136343503² = 37179101620622018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136343003) 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, 345853 + ... + 346246.

It is an arithmetic number, because the mean of its divisors is an integer number (34258950).

Almost surely, 2^136343503 is an apocalyptic number.

136343503 is a deficient number, since it is larger than the sum of its proper divisors (692297).

136343503 is an equidigital number, since it uses as much as digits as its factorization.

136343503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692296.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 136343503 is about 11676.6220714726. The cubic root of 136343503 is about 514.6889163487.

The spelling of 136343503 in words is "one hundred thirty-six million, three hundred forty-three thousand, five hundred three".