136507303 has 4 divisors (see below), whose sum is σ = 137324880. Its totient is φ = 135689728.

The previous prime is 136507289. The next prime is 136507333. The reversal of 136507303 is 303705631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303705631 = 4703 ⋅64577.

It is a cyclic number.

It is not a de Polignac number, because 136507303 - 2⁹ = 136506791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136507333) 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, 408538 + ... + 408871.

It is an arithmetic number, because the mean of its divisors is an integer number (34331220).

Almost surely, 2^136507303 is an apocalyptic number.

136507303 is a deficient number, since it is larger than the sum of its proper divisors (817577).

136507303 is an equidigital number, since it uses as much as digits as its factorization.

136507303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817576.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 136507303 is about 11683.6339809154. The cubic root of 136507303 is about 514.8949457378.

The spelling of 136507303 in words is "one hundred thirty-six million, five hundred seven thousand, three hundred three".