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136142 = 268071
BaseRepresentation
bin100001001111001110
320220202022
4201033032
513324032
62530142
71104626
oct411716
9226668
10136142
1193316
1266952
1349c76
1437886
152a512
hex213ce

136142 has 4 divisors (see below), whose sum is σ = 204216. Its totient is φ = 68070.

The previous prime is 136139. The next prime is 136163. The reversal of 136142 is 241631.

Adding to 136142 its reverse (241631), we get a palindrome (377773).

136142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241631 = 1318587.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 136142.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136142.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34034 + ... + 34037.

It is an arithmetic number, because the mean of its divisors is an integer number (51054).

2136142 is an apocalyptic number.

136142 is a deficient number, since it is larger than the sum of its proper divisors (68074).

136142 is an equidigital number, since it uses as much as digits as its factorization.

136142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68073.

The product of its digits is 144, while the sum is 17.

The square root of 136142 is about 368.9742538444. The cubic root of 136142 is about 51.4435237241.

The spelling of 136142 in words is "one hundred thirty-six thousand, one hundred forty-two".

Divisors: 1 2 68071 136142