136680049 has 8 divisors (see below), whose sum is σ = 151633440. Its totient is φ = 122148000.

The previous prime is 136680043. The next prime is 136680121. The reversal of 136680049 is 940086631.

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 136680049 - 2⁹ = 136679537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136680043) 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, 104652 + ... + 105949.

It is an arithmetic number, because the mean of its divisors is an integer number (18954180).

It is the magic constant of a 649 × 649 magic square.

Almost surely, 2^136680049 is an apocalyptic number.

It is an amenable number.

136680049 is a deficient number, since it is larger than the sum of its proper divisors (14953391).

136680049 is a wasteful number, since it uses less digits than its factorization.

136680049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210671.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 136680049 is about 11691.0242921653. The cubic root of 136680049 is about 515.1120490164.

The spelling of 136680049 in words is "one hundred thirty-six million, six hundred eighty thousand, forty-nine".