125783111 has 2 divisors, whose sum is σ = 125783112. Its totient is φ = 125783110.

The previous prime is 125783093. The next prime is 125783131. The reversal of 125783111 is 111387521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125783111 - 2¹⁰ = 125782087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125783131) 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, 62891555 + 62891556.

It is an arithmetic number, because the mean of its divisors is an integer number (62891556).

Almost surely, 2^125783111 is an apocalyptic number.

125783111 is a deficient number, since it is larger than the sum of its proper divisors (1).

125783111 is an equidigital number, since it uses as much as digits as its factorization.

125783111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 29.

The square root of 125783111 is about 11215.3069953524. The cubic root of 125783111 is about 501.0419750675.

The spelling of 125783111 in words is "one hundred twenty-five million, seven hundred eighty-three thousand, one hundred eleven".