136903 has 4 divisors (see below), whose sum is σ = 147448. Its totient is φ = 126360.

The previous prime is 136897. The next prime is 136943. The reversal of 136903 is 309631.

136903 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 de Polignac number, because none of the positive numbers 2^k-136903 is a prime.

It is a Duffinian number.

136903 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136943) 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, 5253 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (36862).

2¹³⁶⁹⁰³ is an apocalyptic number.

136903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136903 is a deficient number, since it is larger than the sum of its proper divisors (10545).

136903 is a wasteful number, since it uses less digits than its factorization.

136903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10544.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 136903 is about 370.0040540318. The cubic root of 136903 is about 51.5391978578.

The spelling of 136903 in words is "one hundred thirty-six thousand, nine hundred three".