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BaseRepresentation
bin100010101100010001
321012220212
4202230101
514021342
63013505
71131164
oct425421
9235825
10142097
119783a
126a295
134c8a7
152c182
hex22b11

142097 has 2 divisors, whose sum is σ = 142098. Its totient is φ = 142096.

The previous prime is 142067. The next prime is 142099. The reversal of 142097 is 790241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108241 + 33856 = 329^2 + 184^2 .

It is an emirp because it is prime and its reverse (790241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142097 - 210 = 141073 is a prime.

Together with 142099, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142097.

It is not a weakly prime, because it can be changed into another prime (142099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71048 + 71049.

It is an arithmetic number, because the mean of its divisors is an integer number (71049).

2142097 is an apocalyptic number.

It is an amenable number.

142097 is a deficient number, since it is larger than the sum of its proper divisors (1).

142097 is an equidigital number, since it uses as much as digits as its factorization.

142097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 142097 is about 376.9575572926. The cubic root of 142097 is about 52.1829110789.

The spelling of 142097 in words is "one hundred forty-two thousand, ninety-seven".