125492111 has 2 divisors, whose sum is σ = 125492112. Its totient is φ = 125492110.

The previous prime is 125492089. The next prime is 125492149. The reversal of 125492111 is 111294521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125492111 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125492161) 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, 62746055 + 62746056.

It is an arithmetic number, because the mean of its divisors is an integer number (62746056).

Almost surely, 2^125492111 is an apocalyptic number.

125492111 is a deficient number, since it is larger than the sum of its proper divisors (1).

125492111 is an equidigital number, since it uses as much as digits as its factorization.

125492111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 26.

The square root of 125492111 is about 11202.3261423688. The cubic root of 125492111 is about 500.6552888180.

The spelling of 125492111 in words is "one hundred twenty-five million, four hundred ninety-two thousand, one hundred eleven".