136442 has 8 divisors (see below), whose sum is σ = 216756. Its totient is φ = 64192.

The previous prime is 136429. The next prime is 136447. The reversal of 136442 is 244631.

It is a happy number.

136442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 121801 + 14641 = 349^2 + 121^2 .

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

It is a d-powerful number, because it can be written as 1 + 3⁵ + 4⁵ + 6 + 4⁶ + 2¹⁷ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136442.

It is not an unprimeable number, because it can be changed into a prime (136447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1973 + ... + 2040.

2¹³⁶⁴⁴² is an apocalyptic number.

136442 is a deficient number, since it is larger than the sum of its proper divisors (80314).

136442 is a wasteful number, since it uses less digits than its factorization.

136442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032.

The product of its digits is 576, while the sum is 20.

The square root of 136442 is about 369.3805625639. The cubic root of 136442 is about 51.4812826693.

The spelling of 136442 in words is "one hundred thirty-six thousand, four hundred forty-two".