136631005 has 16 divisors (see below), whose sum is σ = 187634304. Its totient is φ = 93562560.

The previous prime is 136630997. The next prime is 136631029. The reversal of 136631005 is 500136631.

It is not a de Polignac number, because 136631005 - 2³ = 136630997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28695 + ... + 33115.

It is an arithmetic number, because the mean of its divisors is an integer number (11727144).

Almost surely, 2^136631005 is an apocalyptic number.

It is an amenable number.

136631005 is a deficient number, since it is larger than the sum of its proper divisors (51003299).

136631005 is an equidigital number, since it uses as much as digits as its factorization.

136631005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 136631005 is about 11688.9265974254. The cubic root of 136631005 is about 515.0504302267.

Adding to 136631005 its reverse (500136631), we get a palindrome (636767636).

The spelling of 136631005 in words is "one hundred thirty-six million, six hundred thirty-one thousand, five".