136106987 has 2 divisors, whose sum is σ = 136106988. Its totient is φ = 136106986.

The previous prime is 136106983. The next prime is 136106989. The reversal of 136106987 is 789601631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136106987 - 2² = 136106983 is a prime.

It is a super-2 number, since 2×136106987² = 37050223820436338, which contains 22 as substring.

Together with 136106989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136106983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68053493 + 68053494.

It is an arithmetic number, because the mean of its divisors is an integer number (68053494).

Almost surely, 2^136106987 is an apocalyptic number.

136106987 is a deficient number, since it is larger than the sum of its proper divisors (1).

136106987 is an equidigital number, since it uses as much as digits as its factorization.

136106987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 136106987 is about 11666.4899177088. The cubic root of 136106987 is about 514.3911326410.

The spelling of 136106987 in words is "one hundred thirty-six million, one hundred six thousand, nine hundred eighty-seven".