125147111 has 2 divisors, whose sum is σ = 125147112. Its totient is φ = 125147110.

The previous prime is 125147069. The next prime is 125147123. The reversal of 125147111 is 111741521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125147111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125147131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62573555 + 62573556.

It is an arithmetic number, because the mean of its divisors is an integer number (62573556).

Almost surely, 2^125147111 is an apocalyptic number.

125147111 is a deficient number, since it is larger than the sum of its proper divisors (1).

125147111 is an equidigital number, since it uses as much as digits as its factorization.

125147111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 280, while the sum is 23.

The square root of 125147111 is about 11186.9169568742. The cubic root of 125147111 is about 500.1960711022.

Adding to 125147111 its reverse (111741521), we get a palindrome (236888632).

The spelling of 125147111 in words is "one hundred twenty-five million, one hundred forty-seven thousand, one hundred eleven".