136813066 has 8 divisors (see below), whose sum is σ = 221005764. Its totient is φ = 63144480.

The previous prime is 136813063. The next prime is 136813067. The reversal of 136813066 is 660318631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 122213025 + 14600041 = 11055^2 + 3821^2 .

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

It is not an unprimeable number, because it can be changed into a prime (136813063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2630995 + ... + 2631046.

Almost surely, 2^136813066 is an apocalyptic number.

136813066 is a deficient number, since it is larger than the sum of its proper divisors (84192698).

136813066 is a wasteful number, since it uses less digits than its factorization.

136813066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262056.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 136813066 is about 11696.7117601487. The cubic root of 136813066 is about 515.2790971567.

The spelling of 136813066 in words is "one hundred thirty-six million, eight hundred thirteen thousand, sixty-six".