136404568 has 8 divisors (see below), whose sum is σ = 255758580. Its totient is φ = 68202280.

The previous prime is 136404497. The next prime is 136404571. The reversal of 136404568 is 865404631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8525278 + ... + 8525293.

Almost surely, 2^136404568 is an apocalyptic number.

It is an amenable number.

136404568 is a deficient number, since it is larger than the sum of its proper divisors (119354012).

136404568 is a wasteful number, since it uses less digits than its factorization.

136404568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17050577 (or 17050573 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 136404568 is about 11679.2366188891. The cubic root of 136404568 is about 514.7657438395.

The spelling of 136404568 in words is "one hundred thirty-six million, four hundred four thousand, five hundred sixty-eight".