136748666 has 8 divisors (see below), whose sum is σ = 208599840. Its totient is φ = 67215388.

The previous prime is 136748603. The next prime is 136748683. The reversal of 136748666 is 666847631.

136748666 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 self number, because there is not a number n which added to its sum of digits gives 136748666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579326 + ... + 579561.

It is an arithmetic number, because the mean of its divisors is an integer number (26074980).

Almost surely, 2^136748666 is an apocalyptic number.

136748666 is a deficient number, since it is larger than the sum of its proper divisors (71851174).

136748666 is a wasteful number, since it uses less digits than its factorization.

136748666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158948.

The product of its digits is 870912, while the sum is 47.

The square root of 136748666 is about 11693.9585256661. The cubic root of 136748666 is about 515.1982345536.

The spelling of 136748666 in words is "one hundred thirty-six million, seven hundred forty-eight thousand, six hundred sixty-six".