136009903 has 8 divisors (see below), whose sum is σ = 139639808. Its totient is φ = 132401304.

The previous prime is 136009871. The next prime is 136009921. The reversal of 136009903 is 309900631.

136009903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136009903 - 2⁵ = 136009871 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 (136009103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8050 + ... + 18352.

It is an arithmetic number, because the mean of its divisors is an integer number (17454976).

Almost surely, 2^136009903 is an apocalyptic number.

136009903 is a deficient number, since it is larger than the sum of its proper divisors (3629905).

136009903 is a wasteful number, since it uses less digits than its factorization.

136009903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10653.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 136009903 is about 11662.3283695838. The cubic root of 136009903 is about 514.2687998883.

The spelling of 136009903 in words is "one hundred thirty-six million, nine thousand, nine hundred three".