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142123 is a prime number
BaseRepresentation
bin100010101100101011
321012221211
4202230223
514021443
63013551
71131232
oct425453
9235854
10142123
1197863
126a2b7
134c8c7
1439b19
152c19d
hex22b2b

142123 has 2 divisors, whose sum is σ = 142124. Its totient is φ = 142122.

The previous prime is 142111. The next prime is 142151. The reversal of 142123 is 321241.

142123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142123 is a prime.

It is not a weakly prime, because it can be changed into another prime (142183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71061 + 71062.

It is an arithmetic number, because the mean of its divisors is an integer number (71062).

2142123 is an apocalyptic number.

142123 is a deficient number, since it is larger than the sum of its proper divisors (1).

142123 is an equidigital number, since it uses as much as digits as its factorization.

142123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 13.

The square root of 142123 is about 376.9920423563. The cubic root of 142123 is about 52.1860935832.

Adding to 142123 its reverse (321241), we get a palindrome (463364).

It can be divided in two parts, 1421 and 23, that added together give a square (1444 = 382).

The spelling of 142123 in words is "one hundred forty-two thousand, one hundred twenty-three", and thus it is an iban number.