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BaseRepresentation
bin11110100100111011
320100210122
4132210323
513001433
62403455
71031066
oct364473
9210718
10125243
1186108
126058b
1345011
14338dd
1527198
hex1e93b

125243 has 2 divisors, whose sum is σ = 125244. Its totient is φ = 125242.

The previous prime is 125231. The next prime is 125261. The reversal of 125243 is 342521.

It is a weak prime.

It is an emirp because it is prime and its reverse (342521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125243 - 28 = 124987 is a prime.

It is a d-powerful number, because it can be written as 1 + 24 + 216 + 54 + 42 + 310 .

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (125743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62621 + 62622.

It is an arithmetic number, because the mean of its divisors is an integer number (62622).

2125243 is an apocalyptic number.

125243 is a deficient number, since it is larger than the sum of its proper divisors (1).

125243 is an equidigital number, since it uses as much as digits as its factorization.

125243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 17.

The square root of 125243 is about 353.8968776353. The cubic root of 125243 is about 50.0323790274.

Adding to 125243 its reverse (342521), we get a palindrome (467764).

The spelling of 125243 in words is "one hundred twenty-five thousand, two hundred forty-three".