125611117 has 2 divisors, whose sum is σ = 125611118. Its totient is φ = 125611116.

The previous prime is 125611099. The next prime is 125611133. The reversal of 125611117 is 711116521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73034116 + 52577001 = 8546^2 + 7251^2 .

It is an emirp because it is prime and its reverse (711116521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125611117 - 2¹¹ = 125609069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125611091 and 125611100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125611417) 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, 62805558 + 62805559.

It is an arithmetic number, because the mean of its divisors is an integer number (62805559).

Almost surely, 2^125611117 is an apocalyptic number.

It is an amenable number.

125611117 is a deficient number, since it is larger than the sum of its proper divisors (1).

125611117 is an equidigital number, since it uses as much as digits as its factorization.

125611117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 25.

The square root of 125611117 is about 11207.6365483540. The cubic root of 125611117 is about 500.8134983896.

Adding to 125611117 its reverse (711116521), we get a palindrome (836727638).

The spelling of 125611117 in words is "one hundred twenty-five million, six hundred eleven thousand, one hundred seventeen".