136187906 has 8 divisors (see below), whose sum is σ = 204816384. Its totient is φ = 67915780.

The previous prime is 136187819. The next prime is 136187911. The reversal of 136187906 is 609781631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88130 + ... + 89661.

It is an arithmetic number, because the mean of its divisors is an integer number (25602048).

Almost surely, 2^136187906 is an apocalyptic number.

136187906 is a deficient number, since it is larger than the sum of its proper divisors (68628478).

136187906 is a wasteful number, since it uses less digits than its factorization.

136187906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178176.

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

The square root of 136187906 is about 11669.9574120902. The cubic root of 136187906 is about 514.4930519004.

The spelling of 136187906 in words is "one hundred thirty-six million, one hundred eighty-seven thousand, nine hundred six".