136731603 has 4 divisors (see below), whose sum is σ = 182308808. Its totient is φ = 91154400.

The previous prime is 136731599. The next prime is 136731631. The reversal of 136731603 is 306137631.

136731603 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 not a de Polignac number, because 136731603 - 2² = 136731599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136731653) 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, 22788598 + ... + 22788603.

It is an arithmetic number, because the mean of its divisors is an integer number (45577202).

Almost surely, 2^136731603 is an apocalyptic number.

136731603 is a deficient number, since it is larger than the sum of its proper divisors (45577205).

136731603 is an equidigital number, since it uses as much as digits as its factorization.

136731603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45577204.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 136731603 is about 11693.2289381505. The cubic root of 136731603 is about 515.1768054765.

The spelling of 136731603 in words is "one hundred thirty-six million, seven hundred thirty-one thousand, six hundred three".