136893018 has 16 divisors (see below), whose sum is σ = 276346080. Its totient is φ = 45204336.

The previous prime is 136893013. The next prime is 136893019. The reversal of 136893018 is 810398631.

It is not an unprimeable number, because it can be changed into a prime (136893013) 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, 105973 + ... + 107256.

It is an arithmetic number, because the mean of its divisors is an integer number (17271630).

Almost surely, 2^136893018 is an apocalyptic number.

136893018 is an abundant number, since it is smaller than the sum of its proper divisors (139453062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136893018 is a wasteful number, since it uses less digits than its factorization.

136893018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213341.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 136893018 is about 11700.1289736481. The cubic root of 136893018 is about 515.3794520254.

The spelling of 136893018 in words is "one hundred thirty-six million, eight hundred ninety-three thousand, eighteen".