136664737 has 8 divisors (see below), whose sum is σ = 150091200. Its totient is φ = 123405360.

The previous prime is 136664719. The next prime is 136664743. The reversal of 136664737 is 737466631.

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 136664737 - 2¹¹ = 136662689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136664693 and 136664702.

It is not an unprimeable number, because it can be changed into a prime (136664797) 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 7 ways as a sum of consecutive naturals, for example, 40053 + ... + 43330.

It is an arithmetic number, because the mean of its divisors is an integer number (18761400).

Almost surely, 2^136664737 is an apocalyptic number.

It is an amenable number.

136664737 is a deficient number, since it is larger than the sum of its proper divisors (13426463).

136664737 is a wasteful number, since it uses less digits than its factorization.

136664737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83543.

The product of its digits is 381024, while the sum is 43.

The square root of 136664737 is about 11690.3694124694. The cubic root of 136664737 is about 515.0928126311.

The spelling of 136664737 in words is "one hundred thirty-six million, six hundred sixty-four thousand, seven hundred thirty-seven".