102531127 has 2 divisors, whose sum is σ = 102531128. Its totient is φ = 102531126.

The previous prime is 102531109. The next prime is 102531137. The reversal of 102531127 is 721135201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102531127 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102531098 and 102531107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102531137) 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, 51265563 + 51265564.

It is an arithmetic number, because the mean of its divisors is an integer number (51265564).

Almost surely, 2^102531127 is an apocalyptic number.

102531127 is a deficient number, since it is larger than the sum of its proper divisors (1).

102531127 is an equidigital number, since it uses as much as digits as its factorization.

102531127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 102531127 is about 10125.7655019263. The cubic root of 102531127 is about 468.0424496402.

Adding to 102531127 its reverse (721135201), we get a palindrome (823666328).

The spelling of 102531127 in words is "one hundred two million, five hundred thirty-one thousand, one hundred twenty-seven".