136561910 has 16 divisors (see below), whose sum is σ = 245944512. Its totient is φ = 54595200.

The previous prime is 136561891. The next prime is 136561921. The reversal of 136561910 is 19165631.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 34430 + ... + 38190.

It is an arithmetic number, because the mean of its divisors is an integer number (15371532).

Almost surely, 2^136561910 is an apocalyptic number.

136561910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136561910 is a deficient number, since it is larger than the sum of its proper divisors (109382602).

136561910 is a wasteful number, since it uses less digits than its factorization.

136561910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 136561910 is about 11685.9706486025. The cubic root of 136561910 is about 514.9635943725.

The spelling of 136561910 in words is "one hundred thirty-six million, five hundred sixty-one thousand, nine hundred ten".