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142757 is a prime number
BaseRepresentation
bin100010110110100101
321020211022
4202312211
514032012
63020525
71133126
oct426645
9236738
10142757
119828a
126a745
134cc94
143a04d
152c472
hex22da5

142757 has 2 divisors, whose sum is σ = 142758. Its totient is φ = 142756.

The previous prime is 142733. The next prime is 142759. The reversal of 142757 is 757241.

Adding to 142757 its reverse (757241), we get a palindrome (899998).

142757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106276 + 36481 = 326^2 + 191^2 .

It is an emirp because it is prime and its reverse (757241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142757 - 28 = 142501 is a prime.

It is a super-2 number, since 2×1427572 = 40759122098, which contains 22 as substring.

Together with 142759, it forms a pair of twin primes.

It is a Chen prime.

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 142757.

It is not a weakly prime, because it can be changed into another prime (142759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71378 + 71379.

It is an arithmetic number, because the mean of its divisors is an integer number (71379).

2142757 is an apocalyptic number.

It is an amenable number.

142757 is a deficient number, since it is larger than the sum of its proper divisors (1).

142757 is an equidigital number, since it uses as much as digits as its factorization.

142757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 26.

The square root of 142757 is about 377.8319732368. The cubic root of 142757 is about 52.2635778911.

The spelling of 142757 in words is "one hundred forty-two thousand, seven hundred fifty-seven".