136105642 has 16 divisors (see below), whose sum is σ = 213258240. Its totient is φ = 65065392.

The previous prime is 136105637. The next prime is 136105649. The reversal of 136105642 is 246501631.

It is a self number, because there is not a number n which added to its sum of digits gives 136105642.

It is not an unprimeable number, because it can be changed into a prime (136105649) by changing a digit.

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, 5418 + ... + 17365.

It is an arithmetic number, because the mean of its divisors is an integer number (13328640).

Almost surely, 2^136105642 is an apocalyptic number.

136105642 is a deficient number, since it is larger than the sum of its proper divisors (77152598).

136105642 is a wasteful number, since it uses less digits than its factorization.

136105642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22917.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 136105642 is about 11666.4322738359. The cubic root of 136105642 is about 514.3894382427.

The spelling of 136105642 in words is "one hundred thirty-six million, one hundred five thousand, six hundred forty-two".