136442128 has 20 divisors (see below), whose sum is σ = 269982720. Its totient is φ = 66769184.

The previous prime is 136442107. The next prime is 136442149. The reversal of 136442128 is 821244631.

It is an interprime number because it is at equal distance from previous prime (136442107) and next prime (136442149).

It is a self number, because there is not a number n which added to its sum of digits gives 136442128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89968 + ... + 91471.

It is an arithmetic number, because the mean of its divisors is an integer number (13499136).

Almost surely, 2^136442128 is an apocalyptic number.

It is an amenable number.

136442128 is a deficient number, since it is larger than the sum of its proper divisors (133540592).

136442128 is a wasteful number, since it uses less digits than its factorization.

136442128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181494 (or 181488 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 136442128 is about 11680.8444900187. The cubic root of 136442128 is about 514.8129876800.

Adding to 136442128 its reverse (821244631), we get a palindrome (957686759).

The spelling of 136442128 in words is "one hundred thirty-six million, four hundred forty-two thousand, one hundred twenty-eight".