136678377 has 8 divisors (see below), whose sum is σ = 198804960. Its totient is φ = 82835360.

The previous prime is 136678309. The next prime is 136678427. The reversal of 136678377 is 773876631.

It is a happy number.

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 136678377 - 2¹⁰ = 136677353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136678177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070852 + ... + 2070917.

It is an arithmetic number, because the mean of its divisors is an integer number (24850620).

Almost surely, 2^136678377 is an apocalyptic number.

It is an amenable number.

136678377 is a deficient number, since it is larger than the sum of its proper divisors (62126583).

136678377 is a wasteful number, since it uses less digits than its factorization.

136678377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141783.

The product of its digits is 889056, while the sum is 48.

The square root of 136678377 is about 11690.9527840976. The cubic root of 136678377 is about 515.1099485615.

The spelling of 136678377 in words is "one hundred thirty-six million, six hundred seventy-eight thousand, three hundred seventy-seven".