136678906 has 16 divisors (see below), whose sum is σ = 252330624. Its totient is φ = 54070704.

The previous prime is 136678901. The next prime is 136678909. The reversal of 136678906 is 609876631.

136678906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136678906² = 37362246690713672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136678901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375310 + ... + 375673.

It is an arithmetic number, because the mean of its divisors is an integer number (15770664).

Almost surely, 2^136678906 is an apocalyptic number.

136678906 is a deficient number, since it is larger than the sum of its proper divisors (115651718).

136678906 is a wasteful number, since it uses less digits than its factorization.

136678906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751005.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 136678906 is about 11690.9754084080. The cubic root of 136678906 is about 515.1106131211.

The spelling of 136678906 in words is "one hundred thirty-six million, six hundred seventy-eight thousand, nine hundred six".