125216107 has 2 divisors, whose sum is σ = 125216108. Its totient is φ = 125216106.

The previous prime is 125216093. The next prime is 125216123. The reversal of 125216107 is 701612521.

It is a weak prime.

It is an emirp because it is prime and its reverse (701612521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125216107 - 2¹¹ = 125214059 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (125216197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62608053 + 62608054.

It is an arithmetic number, because the mean of its divisors is an integer number (62608054).

Almost surely, 2^125216107 is an apocalyptic number.

125216107 is a deficient number, since it is larger than the sum of its proper divisors (1).

125216107 is an equidigital number, since it uses as much as digits as its factorization.

125216107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 125216107 is about 11190.0003127793. Note that the first 3 decimals coincide. The cubic root of 125216107 is about 500.2879767736.

Adding to 125216107 its reverse (701612521), we get a palindrome (826828628).

The spelling of 125216107 in words is "one hundred twenty-five million, two hundred sixteen thousand, one hundred seven".